320165560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{251}}^1$

素因数の和:509

約数の個数: 128

約数和(自身を含む): 853493760

約数和(自身を除く): 533328200

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 223, 251, 260, 286, 440, 446, 502, 520, 572, 715, 892, 1004, 1115, 1144, 1255, 1430, 1784, 2008, 2230, 2453, 2510, 2761, 2860, 2899, 3263, 4460, 4906, 5020, 5522, 5720, 5798, 6526, 8920, 9812, 10040, 11044, 11596, 12265, 13052, 13805, 14495, 16315, 19624, 22088, 23192, 24530, 26104, 27610, 28990, 31889, 32630, 35893, 49060, 55220, 55973, 57980, 63778, 65260, 71786, 98120, 110440, 111946, 115960, 127556, 130520, 143572, 159445, 179465, 223892, 255112, 279865, 287144, 318890, 358930, 447784, 559730, 615703, 637780, 717860, 727649, 1119460, 1231406, 1275560, 1435720, 1455298, 2238920, 2462812, 2910596, 3078515, 3638245, 4925624, 5821192, 6157030, 7276490, 8004139, 12314060, 14552980, 16008278, 24628120, 29105960, 32016556, 40020695, 64033112, 80041390, 160082780, 320165560]

約数ペア:

[(1, 320165560), (2, 160082780), (4, 80041390), (5, 64033112), (8, 40020695), (10, 32016556), (11, 29105960), (13, 24628120), (20, 16008278), (22, 14552980), (26, 12314060), (40, 8004139), (44, 7276490), (52, 6157030), (55, 5821192), (65, 4925624), (88, 3638245), (104, 3078515), (110, 2910596), (130, 2462812), (143, 2238920), (220, 1455298), (223, 1435720), (251, 1275560), (260, 1231406), (286, 1119460), (440, 727649), (446, 717860), (502, 637780), (520, 615703), (572, 559730), (715, 447784), (892, 358930), (1004, 318890), (1115, 287144), (1144, 279865), (1255, 255112), (1430, 223892), (1784, 179465), (2008, 159445), (2230, 143572), (2453, 130520), (2510, 127556), (2761, 115960), (2860, 111946), (2899, 110440), (3263, 98120), (4460, 71786), (4906, 65260), (5020, 63778), (5522, 57980), (5720, 55973), (5798, 55220), (6526, 49060), (8920, 35893), (9812, 32630), (10040, 31889), (11044, 28990), (11596, 27610), (12265, 26104), (13052, 24530), (13805, 23192), (14495, 22088), (16315, 19624)]