7801640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1$

素因数の和:195

約数の個数: 128

約数和(自身を含む): 23328000

約数和(自身を除く): 15526360

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 17, 20, 22, 28, 34, 35, 40, 44, 55, 56, 68, 70, 77, 85, 88, 110, 119, 136, 140, 149, 154, 170, 187, 220, 238, 280, 298, 308, 340, 374, 385, 440, 476, 595, 596, 616, 680, 745, 748, 770, 935, 952, 1043, 1190, 1192, 1309, 1490, 1496, 1540, 1639, 1870, 2086, 2380, 2533, 2618, 2980, 3080, 3278, 3740, 4172, 4760, 5066, 5215, 5236, 5960, 6545, 6556, 7480, 8195, 8344, 10132, 10430, 10472, 11473, 12665, 13090, 13112, 16390, 17731, 20264, 20860, 22946, 25330, 26180, 27863, 32780, 35462, 41720, 45892, 50660, 52360, 55726, 57365, 65560, 70924, 88655, 91784, 101320, 111452, 114730, 139315, 141848, 177310, 195041, 222904, 229460, 278630, 354620, 390082, 458920, 557260, 709240, 780164, 975205, 1114520, 1560328, 1950410, 3900820, 7801640]

約数ペア:

[(1, 7801640), (2, 3900820), (4, 1950410), (5, 1560328), (7, 1114520), (8, 975205), (10, 780164), (11, 709240), (14, 557260), (17, 458920), (20, 390082), (22, 354620), (28, 278630), (34, 229460), (35, 222904), (40, 195041), (44, 177310), (55, 141848), (56, 139315), (68, 114730), (70, 111452), (77, 101320), (85, 91784), (88, 88655), (110, 70924), (119, 65560), (136, 57365), (140, 55726), (149, 52360), (154, 50660), (170, 45892), (187, 41720), (220, 35462), (238, 32780), (280, 27863), (298, 26180), (308, 25330), (340, 22946), (374, 20860), (385, 20264), (440, 17731), (476, 16390), (595, 13112), (596, 13090), (616, 12665), (680, 11473), (745, 10472), (748, 10430), (770, 10132), (935, 8344), (952, 8195), (1043, 7480), (1190, 6556), (1192, 6545), (1309, 5960), (1490, 5236), (1496, 5215), (1540, 5066), (1639, 4760), (1870, 4172), (2086, 3740), (2380, 3278), (2533, 3080), (2618, 2980)]