72381920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:157

約数の個数: 192

約数和(自身を含む): 205752960

約数和(自身を除く): 133371040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 23, 26, 32, 34, 40, 46, 52, 65, 68, 80, 85, 89, 92, 104, 115, 130, 136, 160, 170, 178, 184, 208, 221, 230, 260, 272, 299, 340, 356, 368, 391, 416, 442, 445, 460, 520, 544, 598, 680, 712, 736, 782, 884, 890, 920, 1040, 1105, 1157, 1196, 1360, 1424, 1495, 1513, 1564, 1768, 1780, 1840, 1955, 2047, 2080, 2210, 2314, 2392, 2720, 2848, 2990, 3026, 3128, 3536, 3560, 3680, 3910, 4094, 4420, 4628, 4784, 5083, 5785, 5980, 6052, 6256, 7072, 7120, 7565, 7820, 8188, 8840, 9256, 9568, 10166, 10235, 11570, 11960, 12104, 12512, 14240, 15130, 15640, 16376, 17680, 18512, 19669, 20332, 20470, 23140, 23920, 24208, 25415, 26611, 30260, 31280, 32752, 34799, 35360, 37024, 39338, 40664, 40940, 46280, 47840, 48416, 50830, 53222, 60520, 62560, 65504, 69598, 78676, 81328, 81880, 92560, 98345, 101660, 106444, 121040, 133055, 139196, 157352, 162656, 163760, 173995, 185120, 196690, 203320, 212888, 242080, 266110, 278392, 314704, 327520, 347990, 393380, 406640, 425776, 452387, 532220, 556784, 629408, 695980, 786760, 813280, 851552, 904774, 1064440, 1113568, 1391960, 1573520, 1809548, 2128880, 2261935, 2783920, 3147040, 3619096, 4257760, 4523870, 5567840, 7238192, 9047740, 14476384, 18095480, 36190960, 72381920]

約数ペア:

[(1, 72381920), (2, 36190960), (4, 18095480), (5, 14476384), (8, 9047740), (10, 7238192), (13, 5567840), (16, 4523870), (17, 4257760), (20, 3619096), (23, 3147040), (26, 2783920), (32, 2261935), (34, 2128880), (40, 1809548), (46, 1573520), (52, 1391960), (65, 1113568), (68, 1064440), (80, 904774), (85, 851552), (89, 813280), (92, 786760), (104, 695980), (115, 629408), (130, 556784), (136, 532220), (160, 452387), (170, 425776), (178, 406640), (184, 393380), (208, 347990), (221, 327520), (230, 314704), (260, 278392), (272, 266110), (299, 242080), (340, 212888), (356, 203320), (368, 196690), (391, 185120), (416, 173995), (442, 163760), (445, 162656), (460, 157352), (520, 139196), (544, 133055), (598, 121040), (680, 106444), (712, 101660), (736, 98345), (782, 92560), (884, 81880), (890, 81328), (920, 78676), (1040, 69598), (1105, 65504), (1157, 62560), (1196, 60520), (1360, 53222), (1424, 50830), (1495, 48416), (1513, 47840), (1564, 46280), (1768, 40940), (1780, 40664), (1840, 39338), (1955, 37024), (2047, 35360), (2080, 34799), (2210, 32752), (2314, 31280), (2392, 30260), (2720, 26611), (2848, 25415), (2990, 24208), (3026, 23920), (3128, 23140), (3536, 20470), (3560, 20332), (3680, 19669), (3910, 18512), (4094, 17680), (4420, 16376), (4628, 15640), (4784, 15130), (5083, 14240), (5785, 12512), (5980, 12104), (6052, 11960), (6256, 11570), (7072, 10235), (7120, 10166), (7565, 9568), (7820, 9256), (8188, 8840)]