209821950

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:164

約数の個数: 216

約数和(自身を含む): 637191360

約数和(自身を除く): 427369410

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 25, 26, 30, 31, 39, 45, 50, 62, 65, 75, 78, 89, 90, 93, 117, 130, 150, 155, 169, 178, 186, 195, 225, 234, 267, 279, 310, 325, 338, 390, 403, 445, 450, 465, 507, 534, 558, 585, 650, 775, 801, 806, 845, 890, 930, 975, 1014, 1157, 1170, 1209, 1335, 1395, 1521, 1550, 1602, 1690, 1950, 2015, 2225, 2314, 2325, 2418, 2535, 2670, 2759, 2790, 2925, 3042, 3471, 3627, 4005, 4030, 4225, 4450, 4650, 5070, 5239, 5518, 5785, 5850, 6045, 6675, 6942, 6975, 7254, 7605, 8010, 8277, 8450, 10075, 10413, 10478, 11570, 12090, 12675, 13350, 13795, 13950, 15041, 15210, 15717, 16554, 17355, 18135, 20025, 20150, 20826, 24831, 25350, 26195, 27590, 28925, 30082, 30225, 31434, 34710, 35867, 36270, 38025, 40050, 41385, 45123, 47151, 49662, 52065, 52390, 57850, 60450, 68975, 71734, 75205, 76050, 78585, 82770, 86775, 90246, 90675, 94302, 104130, 107601, 124155, 130975, 135369, 137950, 150410, 157170, 173550, 179335, 181350, 206925, 215202, 225615, 235755, 248310, 260325, 261950, 270738, 322803, 358670, 376025, 392925, 413850, 451230, 466271, 471510, 520650, 538005, 620775, 645606, 676845, 752050, 785850, 896675, 932542, 1076010, 1128075, 1178775, 1241550, 1353690, 1398813, 1614015, 1793350, 2256150, 2331355, 2357550, 2690025, 2797626, 3228030, 3384225, 4196439, 4662710, 5380050, 6768450, 6994065, 8070075, 8392878, 11656775, 13988130, 16140150, 20982195, 23313550, 34970325, 41964390, 69940650, 104910975, 209821950]

約数ペア:

[(1, 209821950), (2, 104910975), (3, 69940650), (5, 41964390), (6, 34970325), (9, 23313550), (10, 20982195), (13, 16140150), (15, 13988130), (18, 11656775), (25, 8392878), (26, 8070075), (30, 6994065), (31, 6768450), (39, 5380050), (45, 4662710), (50, 4196439), (62, 3384225), (65, 3228030), (75, 2797626), (78, 2690025), (89, 2357550), (90, 2331355), (93, 2256150), (117, 1793350), (130, 1614015), (150, 1398813), (155, 1353690), (169, 1241550), (178, 1178775), (186, 1128075), (195, 1076010), (225, 932542), (234, 896675), (267, 785850), (279, 752050), (310, 676845), (325, 645606), (338, 620775), (390, 538005), (403, 520650), (445, 471510), (450, 466271), (465, 451230), (507, 413850), (534, 392925), (558, 376025), (585, 358670), (650, 322803), (775, 270738), (801, 261950), (806, 260325), (845, 248310), (890, 235755), (930, 225615), (975, 215202), (1014, 206925), (1157, 181350), (1170, 179335), (1209, 173550), (1335, 157170), (1395, 150410), (1521, 137950), (1550, 135369), (1602, 130975), (1690, 124155), (1950, 107601), (2015, 104130), (2225, 94302), (2314, 90675), (2325, 90246), (2418, 86775), (2535, 82770), (2670, 78585), (2759, 76050), (2790, 75205), (2925, 71734), (3042, 68975), (3471, 60450), (3627, 57850), (4005, 52390), (4030, 52065), (4225, 49662), (4450, 47151), (4650, 45123), (5070, 41385), (5239, 40050), (5518, 38025), (5785, 36270), (5850, 35867), (6045, 34710), (6675, 31434), (6942, 30225), (6975, 30082), (7254, 28925), (7605, 27590), (8010, 26195), (8277, 25350), (8450, 24831), (10075, 20826), (10413, 20150), (10478, 20025), (11570, 18135), (12090, 17355), (12675, 16554), (13350, 15717), (13795, 15210), (13950, 15041)]