64978900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:266

約数の個数: 108

約数和(自身を含む): 166981500

約数和(自身を除く): 102002600

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 89, 98, 100, 140, 149, 175, 178, 196, 245, 298, 350, 356, 445, 490, 596, 623, 700, 745, 890, 980, 1043, 1225, 1246, 1490, 1780, 2086, 2225, 2450, 2492, 2980, 3115, 3725, 4172, 4361, 4450, 4900, 5215, 6230, 7301, 7450, 8722, 8900, 10430, 12460, 13261, 14602, 14900, 15575, 17444, 20860, 21805, 26075, 26522, 29204, 31150, 36505, 43610, 52150, 53044, 62300, 66305, 73010, 87220, 92827, 104300, 109025, 132610, 146020, 182525, 185654, 218050, 265220, 331525, 365050, 371308, 436100, 464135, 649789, 663050, 730100, 928270, 1299578, 1326100, 1856540, 2320675, 2599156, 3248945, 4641350, 6497890, 9282700, 12995780, 16244725, 32489450, 64978900]

約数ペア:

[(1, 64978900), (2, 32489450), (4, 16244725), (5, 12995780), (7, 9282700), (10, 6497890), (14, 4641350), (20, 3248945), (25, 2599156), (28, 2320675), (35, 1856540), (49, 1326100), (50, 1299578), (70, 928270), (89, 730100), (98, 663050), (100, 649789), (140, 464135), (149, 436100), (175, 371308), (178, 365050), (196, 331525), (245, 265220), (298, 218050), (350, 185654), (356, 182525), (445, 146020), (490, 132610), (596, 109025), (623, 104300), (700, 92827), (745, 87220), (890, 73010), (980, 66305), (1043, 62300), (1225, 53044), (1246, 52150), (1490, 43610), (1780, 36505), (2086, 31150), (2225, 29204), (2450, 26522), (2492, 26075), (2980, 21805), (3115, 20860), (3725, 17444), (4172, 15575), (4361, 14900), (4450, 14602), (4900, 13261), (5215, 12460), (6230, 10430), (7301, 8900), (7450, 8722)]