291371220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3257}}^1$

素因数の和:3350

約数の個数: 144

約数和(自身を含む): 1024627968

約数和(自身を除く): 733256748

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 71, 84, 90, 105, 126, 140, 142, 180, 210, 213, 252, 284, 315, 355, 420, 426, 497, 630, 639, 710, 852, 994, 1065, 1260, 1278, 1420, 1491, 1988, 2130, 2485, 2556, 2982, 3195, 3257, 4260, 4473, 4970, 5964, 6390, 6514, 7455, 8946, 9771, 9940, 12780, 13028, 14910, 16285, 17892, 19542, 22365, 22799, 29313, 29820, 32570, 39084, 44730, 45598, 48855, 58626, 65140, 68397, 89460, 91196, 97710, 113995, 117252, 136794, 146565, 195420, 205191, 227990, 231247, 273588, 293130, 341985, 410382, 455980, 462494, 586260, 683970, 693741, 820764, 924988, 1025955, 1156235, 1367940, 1387482, 1618729, 2051910, 2081223, 2312470, 2774964, 3237458, 3468705, 4103820, 4162446, 4624940, 4856187, 6474916, 6937410, 8093645, 8324892, 9712374, 10406115, 13874820, 14568561, 16187290, 19424748, 20812230, 24280935, 29137122, 32374580, 41624460, 48561870, 58274244, 72842805, 97123740, 145685610, 291371220]

約数ペア:

[(1, 291371220), (2, 145685610), (3, 97123740), (4, 72842805), (5, 58274244), (6, 48561870), (7, 41624460), (9, 32374580), (10, 29137122), (12, 24280935), (14, 20812230), (15, 19424748), (18, 16187290), (20, 14568561), (21, 13874820), (28, 10406115), (30, 9712374), (35, 8324892), (36, 8093645), (42, 6937410), (45, 6474916), (60, 4856187), (63, 4624940), (70, 4162446), (71, 4103820), (84, 3468705), (90, 3237458), (105, 2774964), (126, 2312470), (140, 2081223), (142, 2051910), (180, 1618729), (210, 1387482), (213, 1367940), (252, 1156235), (284, 1025955), (315, 924988), (355, 820764), (420, 693741), (426, 683970), (497, 586260), (630, 462494), (639, 455980), (710, 410382), (852, 341985), (994, 293130), (1065, 273588), (1260, 231247), (1278, 227990), (1420, 205191), (1491, 195420), (1988, 146565), (2130, 136794), (2485, 117252), (2556, 113995), (2982, 97710), (3195, 91196), (3257, 89460), (4260, 68397), (4473, 65140), (4970, 58626), (5964, 48855), (6390, 45598), (6514, 44730), (7455, 39084), (8946, 32570), (9771, 29820), (9940, 29313), (12780, 22799), (13028, 22365), (14910, 19542), (16285, 17892)]