72388720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:179

約数の個数: 120

約数和(自身を含む): 186380928

約数和(自身を除く): 113992208

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 62, 68, 80, 85, 101, 124, 136, 155, 170, 202, 248, 272, 289, 310, 340, 404, 496, 505, 527, 578, 620, 680, 808, 1010, 1054, 1156, 1240, 1360, 1445, 1616, 1717, 2020, 2108, 2312, 2480, 2635, 2890, 3131, 3434, 4040, 4216, 4624, 5270, 5780, 6262, 6868, 8080, 8432, 8585, 8959, 10540, 11560, 12524, 13736, 15655, 17170, 17918, 21080, 23120, 25048, 27472, 29189, 31310, 34340, 35836, 42160, 44795, 50096, 53227, 58378, 62620, 68680, 71672, 89590, 106454, 116756, 125240, 137360, 143344, 145945, 179180, 212908, 233512, 250480, 266135, 291890, 358360, 425816, 467024, 532270, 583780, 716720, 851632, 904859, 1064540, 1167560, 1809718, 2129080, 2335120, 3619436, 4258160, 4524295, 7238872, 9048590, 14477744, 18097180, 36194360, 72388720]

約数ペア:

[(1, 72388720), (2, 36194360), (4, 18097180), (5, 14477744), (8, 9048590), (10, 7238872), (16, 4524295), (17, 4258160), (20, 3619436), (31, 2335120), (34, 2129080), (40, 1809718), (62, 1167560), (68, 1064540), (80, 904859), (85, 851632), (101, 716720), (124, 583780), (136, 532270), (155, 467024), (170, 425816), (202, 358360), (248, 291890), (272, 266135), (289, 250480), (310, 233512), (340, 212908), (404, 179180), (496, 145945), (505, 143344), (527, 137360), (578, 125240), (620, 116756), (680, 106454), (808, 89590), (1010, 71672), (1054, 68680), (1156, 62620), (1240, 58378), (1360, 53227), (1445, 50096), (1616, 44795), (1717, 42160), (2020, 35836), (2108, 34340), (2312, 31310), (2480, 29189), (2635, 27472), (2890, 25048), (3131, 23120), (3434, 21080), (4040, 17918), (4216, 17170), (4624, 15655), (5270, 13736), (5780, 12524), (6262, 11560), (6868, 10540), (8080, 8959), (8432, 8585)]