20121388320

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{64591}}^1$

素因数の和:64679

約数の個数: 192

約数和(自身を含む): 70317434880

約数和(自身を除く): 50196046560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 59, 60, 66, 80, 88, 96, 110, 118, 120, 132, 160, 165, 176, 177, 220, 236, 240, 264, 295, 330, 352, 354, 440, 472, 480, 528, 590, 649, 660, 708, 880, 885, 944, 1056, 1180, 1298, 1320, 1416, 1760, 1770, 1888, 1947, 2360, 2596, 2640, 2832, 3245, 3540, 3894, 4720, 5192, 5280, 5664, 6490, 7080, 7788, 9440, 9735, 10384, 12980, 14160, 15576, 19470, 20768, 25960, 28320, 31152, 38940, 51920, 62304, 64591, 77880, 103840, 129182, 155760, 193773, 258364, 311520, 322955, 387546, 516728, 645910, 710501, 775092, 968865, 1033456, 1291820, 1421002, 1550184, 1937730, 2066912, 2131503, 2583640, 2842004, 3100368, 3552505, 3810869, 3875460, 4263006, 5167280, 5684008, 6200736, 7105010, 7621738, 7750920, 8526012, 10334560, 10657515, 11368016, 11432607, 14210020, 15243476, 15501840, 17052024, 19054345, 21315030, 22736032, 22865214, 28420040, 30486952, 31003680, 34104048, 38108690, 41919559, 42630060, 45730428, 56840080, 57163035, 60973904, 68208096, 76217380, 83839118, 85260120, 91460856, 113680160, 114326070, 121947808, 125758677, 152434760, 167678236, 170520240, 182921712, 209597795, 228652140, 251517354, 304869520, 335356472, 341040480, 365843424, 419195590, 457304280, 503034708, 609739040, 628793385, 670712944, 838391180, 914608560, 1006069416, 1257586770, 1341425888, 1676782360, 1829217120, 2012138832, 2515173540, 3353564720, 4024277664, 5030347080, 6707129440, 10060694160, 20121388320]

約数ペア:

[(1, 20121388320), (2, 10060694160), (3, 6707129440), (4, 5030347080), (5, 4024277664), (6, 3353564720), (8, 2515173540), (10, 2012138832), (11, 1829217120), (12, 1676782360), (15, 1341425888), (16, 1257586770), (20, 1006069416), (22, 914608560), (24, 838391180), (30, 670712944), (32, 628793385), (33, 609739040), (40, 503034708), (44, 457304280), (48, 419195590), (55, 365843424), (59, 341040480), (60, 335356472), (66, 304869520), (80, 251517354), (88, 228652140), (96, 209597795), (110, 182921712), (118, 170520240), (120, 167678236), (132, 152434760), (160, 125758677), (165, 121947808), (176, 114326070), (177, 113680160), (220, 91460856), (236, 85260120), (240, 83839118), (264, 76217380), (295, 68208096), (330, 60973904), (352, 57163035), (354, 56840080), (440, 45730428), (472, 42630060), (480, 41919559), (528, 38108690), (590, 34104048), (649, 31003680), (660, 30486952), (708, 28420040), (880, 22865214), (885, 22736032), (944, 21315030), (1056, 19054345), (1180, 17052024), (1298, 15501840), (1320, 15243476), (1416, 14210020), (1760, 11432607), (1770, 11368016), (1888, 10657515), (1947, 10334560), (2360, 8526012), (2596, 7750920), (2640, 7621738), (2832, 7105010), (3245, 6200736), (3540, 5684008), (3894, 5167280), (4720, 4263006), (5192, 3875460), (5280, 3810869), (5664, 3552505), (6490, 3100368), (7080, 2842004), (7788, 2583640), (9440, 2131503), (9735, 2066912), (10384, 1937730), (12980, 1550184), (14160, 1421002), (15576, 1291820), (19470, 1033456), (20768, 968865), (25960, 775092), (28320, 710501), (31152, 645910), (38940, 516728), (51920, 387546), (62304, 322955), (64591, 311520), (77880, 258364), (103840, 193773), (129182, 155760)]