20261766880

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^2\times {\mathrm{157}}^1\times {\mathrm{2791}}^1$

素因数の和:2997

約数の個数: 144

約数和(自身を含む): 51192068256

約数和(自身を除く): 30930301376

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 157, 160, 170, 272, 289, 314, 340, 544, 578, 628, 680, 785, 1156, 1256, 1360, 1445, 1570, 2312, 2512, 2669, 2720, 2791, 2890, 3140, 4624, 5024, 5338, 5582, 5780, 6280, 9248, 10676, 11164, 11560, 12560, 13345, 13955, 21352, 22328, 23120, 25120, 26690, 27910, 42704, 44656, 45373, 46240, 47447, 53380, 55820, 85408, 89312, 90746, 94894, 106760, 111640, 181492, 189788, 213520, 223280, 226865, 237235, 362984, 379576, 427040, 438187, 446560, 453730, 474470, 725968, 759152, 806599, 876374, 907460, 948940, 1451936, 1518304, 1613198, 1752748, 1814920, 1897880, 2190935, 3226396, 3505496, 3629840, 3795760, 4032995, 4381870, 6452792, 7010992, 7259680, 7449179, 7591520, 8065990, 8763740, 12905584, 14021984, 14898358, 16131980, 17527480, 25811168, 29796716, 32263960, 35054960, 37245895, 59593432, 64527920, 70109920, 74491790, 119186864, 126636043, 129055840, 148983580, 238373728, 253272086, 297967160, 506544172, 595934320, 633180215, 1013088344, 1191868640, 1266360430, 2026176688, 2532720860, 4052353376, 5065441720, 10130883440, 20261766880]

約数ペア:

[(1, 20261766880), (2, 10130883440), (4, 5065441720), (5, 4052353376), (8, 2532720860), (10, 2026176688), (16, 1266360430), (17, 1191868640), (20, 1013088344), (32, 633180215), (34, 595934320), (40, 506544172), (68, 297967160), (80, 253272086), (85, 238373728), (136, 148983580), (157, 129055840), (160, 126636043), (170, 119186864), (272, 74491790), (289, 70109920), (314, 64527920), (340, 59593432), (544, 37245895), (578, 35054960), (628, 32263960), (680, 29796716), (785, 25811168), (1156, 17527480), (1256, 16131980), (1360, 14898358), (1445, 14021984), (1570, 12905584), (2312, 8763740), (2512, 8065990), (2669, 7591520), (2720, 7449179), (2791, 7259680), (2890, 7010992), (3140, 6452792), (4624, 4381870), (5024, 4032995), (5338, 3795760), (5582, 3629840), (5780, 3505496), (6280, 3226396), (9248, 2190935), (10676, 1897880), (11164, 1814920), (11560, 1752748), (12560, 1613198), (13345, 1518304), (13955, 1451936), (21352, 948940), (22328, 907460), (23120, 876374), (25120, 806599), (26690, 759152), (27910, 725968), (42704, 474470), (44656, 453730), (45373, 446560), (46240, 438187), (47447, 427040), (53380, 379576), (55820, 362984), (85408, 237235), (89312, 226865), (90746, 223280), (94894, 213520), (106760, 189788), (111640, 181492)]