641504080

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{5279}}^1$

素因数の和:5337

約数の個数: 120

約数和(自身を含む): 1791313920

約数和(自身を除く): 1149809840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 196, 217, 245, 248, 280, 310, 392, 434, 490, 496, 560, 620, 784, 868, 980, 1085, 1240, 1519, 1736, 1960, 2170, 2480, 3038, 3472, 3920, 4340, 5279, 6076, 7595, 8680, 10558, 12152, 15190, 17360, 21116, 24304, 26395, 30380, 36953, 42232, 52790, 60760, 73906, 84464, 105580, 121520, 147812, 163649, 184765, 211160, 258671, 295624, 327298, 369530, 422320, 517342, 591248, 654596, 739060, 818245, 1034684, 1145543, 1293355, 1309192, 1478120, 1636490, 2069368, 2291086, 2586710, 2618384, 2956240, 3272980, 4138736, 4582172, 5173420, 5727715, 6545960, 8018801, 9164344, 10346840, 11455430, 13091920, 16037602, 18328688, 20693680, 22910860, 32075204, 40094005, 45821720, 64150408, 80188010, 91643440, 128300816, 160376020, 320752040, 641504080]

約数ペア:

[(1, 641504080), (2, 320752040), (4, 160376020), (5, 128300816), (7, 91643440), (8, 80188010), (10, 64150408), (14, 45821720), (16, 40094005), (20, 32075204), (28, 22910860), (31, 20693680), (35, 18328688), (40, 16037602), (49, 13091920), (56, 11455430), (62, 10346840), (70, 9164344), (80, 8018801), (98, 6545960), (112, 5727715), (124, 5173420), (140, 4582172), (155, 4138736), (196, 3272980), (217, 2956240), (245, 2618384), (248, 2586710), (280, 2291086), (310, 2069368), (392, 1636490), (434, 1478120), (490, 1309192), (496, 1293355), (560, 1145543), (620, 1034684), (784, 818245), (868, 739060), (980, 654596), (1085, 591248), (1240, 517342), (1519, 422320), (1736, 369530), (1960, 327298), (2170, 295624), (2480, 258671), (3038, 211160), (3472, 184765), (3920, 163649), (4340, 147812), (5279, 121520), (6076, 105580), (7595, 84464), (8680, 73906), (10558, 60760), (12152, 52790), (15190, 42232), (17360, 36953), (21116, 30380), (24304, 26395)]