1215704680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{571}}^1$

素因数の和:731

約数の個数: 128

約数和(自身を含む): 3024552960

約数和(自身を除く): 1808848280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 85, 101, 124, 136, 155, 170, 202, 248, 310, 340, 404, 505, 527, 571, 620, 680, 808, 1010, 1054, 1142, 1240, 1717, 2020, 2108, 2284, 2635, 2855, 3131, 3434, 4040, 4216, 4568, 5270, 5710, 6262, 6868, 8585, 9707, 10540, 11420, 12524, 13736, 15655, 17170, 17701, 19414, 21080, 22840, 25048, 31310, 34340, 35402, 38828, 48535, 53227, 57671, 62620, 68680, 70804, 77656, 88505, 97070, 106454, 115342, 125240, 141608, 177010, 194140, 212908, 230684, 266135, 288355, 300917, 354020, 388280, 425816, 461368, 532270, 576710, 601834, 708040, 980407, 1064540, 1153420, 1203668, 1504585, 1787801, 1960814, 2129080, 2306840, 2407336, 3009170, 3575602, 3921628, 4902035, 6018340, 7151204, 7843256, 8939005, 9804070, 12036680, 14302408, 17878010, 19608140, 30392617, 35756020, 39216280, 60785234, 71512040, 121570468, 151963085, 243140936, 303926170, 607852340, 1215704680]

約数ペア:

[(1, 1215704680), (2, 607852340), (4, 303926170), (5, 243140936), (8, 151963085), (10, 121570468), (17, 71512040), (20, 60785234), (31, 39216280), (34, 35756020), (40, 30392617), (62, 19608140), (68, 17878010), (85, 14302408), (101, 12036680), (124, 9804070), (136, 8939005), (155, 7843256), (170, 7151204), (202, 6018340), (248, 4902035), (310, 3921628), (340, 3575602), (404, 3009170), (505, 2407336), (527, 2306840), (571, 2129080), (620, 1960814), (680, 1787801), (808, 1504585), (1010, 1203668), (1054, 1153420), (1142, 1064540), (1240, 980407), (1717, 708040), (2020, 601834), (2108, 576710), (2284, 532270), (2635, 461368), (2855, 425816), (3131, 388280), (3434, 354020), (4040, 300917), (4216, 288355), (4568, 266135), (5270, 230684), (5710, 212908), (6262, 194140), (6868, 177010), (8585, 141608), (9707, 125240), (10540, 115342), (11420, 106454), (12524, 97070), (13736, 88505), (15655, 77656), (17170, 70804), (17701, 68680), (19414, 62620), (21080, 57671), (22840, 53227), (25048, 48535), (31310, 38828), (34340, 35402)]