7227220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2$

素因数の和:78

約数の個数: 144

約数和(自身を含む): 21506688

約数和(自身を除く): 14279468

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 19, 20, 22, 26, 28, 35, 38, 44, 52, 55, 65, 70, 76, 77, 91, 95, 110, 130, 133, 140, 143, 154, 182, 190, 209, 220, 247, 260, 266, 286, 308, 361, 364, 380, 385, 418, 455, 494, 532, 572, 665, 715, 722, 770, 836, 910, 988, 1001, 1045, 1235, 1330, 1430, 1444, 1463, 1540, 1729, 1805, 1820, 2002, 2090, 2470, 2527, 2660, 2717, 2860, 2926, 3458, 3610, 3971, 4004, 4180, 4693, 4940, 5005, 5054, 5434, 5852, 6916, 7220, 7315, 7942, 8645, 9386, 10010, 10108, 10868, 12635, 13585, 14630, 15884, 17290, 18772, 19019, 19855, 20020, 23465, 25270, 27170, 27797, 29260, 32851, 34580, 38038, 39710, 46930, 50540, 51623, 54340, 55594, 65702, 76076, 79420, 93860, 95095, 103246, 111188, 131404, 138985, 164255, 190190, 206492, 258115, 277970, 328510, 361361, 380380, 516230, 555940, 657020, 722722, 1032460, 1445444, 1806805, 3613610, 7227220]

約数ペア:

[(1, 7227220), (2, 3613610), (4, 1806805), (5, 1445444), (7, 1032460), (10, 722722), (11, 657020), (13, 555940), (14, 516230), (19, 380380), (20, 361361), (22, 328510), (26, 277970), (28, 258115), (35, 206492), (38, 190190), (44, 164255), (52, 138985), (55, 131404), (65, 111188), (70, 103246), (76, 95095), (77, 93860), (91, 79420), (95, 76076), (110, 65702), (130, 55594), (133, 54340), (140, 51623), (143, 50540), (154, 46930), (182, 39710), (190, 38038), (209, 34580), (220, 32851), (247, 29260), (260, 27797), (266, 27170), (286, 25270), (308, 23465), (361, 20020), (364, 19855), (380, 19019), (385, 18772), (418, 17290), (455, 15884), (494, 14630), (532, 13585), (572, 12635), (665, 10868), (715, 10108), (722, 10010), (770, 9386), (836, 8645), (910, 7942), (988, 7315), (1001, 7220), (1045, 6916), (1235, 5852), (1330, 5434), (1430, 5054), (1444, 5005), (1463, 4940), (1540, 4693), (1729, 4180), (1805, 4004), (1820, 3971), (2002, 3610), (2090, 3458), (2470, 2926), (2527, 2860), (2660, 2717)]