290090380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:355

約数の個数: 96

約数和(自身を含む): 668207232

約数和(自身を除く): 378116852

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 61, 68, 71, 85, 122, 142, 170, 197, 244, 284, 305, 340, 355, 394, 610, 710, 788, 985, 1037, 1207, 1220, 1420, 1970, 2074, 2414, 3349, 3940, 4148, 4331, 4828, 5185, 6035, 6698, 8662, 10370, 12017, 12070, 13396, 13987, 16745, 17324, 20740, 21655, 24034, 24140, 27974, 33490, 43310, 48068, 55948, 60085, 66980, 69935, 73627, 86620, 120170, 139870, 147254, 204289, 237779, 240340, 279740, 294508, 368135, 408578, 475558, 736270, 817156, 853207, 951116, 1021445, 1188895, 1472540, 1706414, 2042890, 2377790, 3412828, 4085780, 4266035, 4755580, 8532070, 14504519, 17064140, 29009038, 58018076, 72522595, 145045190, 290090380]

約数ペア:

[(1, 290090380), (2, 145045190), (4, 72522595), (5, 58018076), (10, 29009038), (17, 17064140), (20, 14504519), (34, 8532070), (61, 4755580), (68, 4266035), (71, 4085780), (85, 3412828), (122, 2377790), (142, 2042890), (170, 1706414), (197, 1472540), (244, 1188895), (284, 1021445), (305, 951116), (340, 853207), (355, 817156), (394, 736270), (610, 475558), (710, 408578), (788, 368135), (985, 294508), (1037, 279740), (1207, 240340), (1220, 237779), (1420, 204289), (1970, 147254), (2074, 139870), (2414, 120170), (3349, 86620), (3940, 73627), (4148, 69935), (4331, 66980), (4828, 60085), (5185, 55948), (6035, 48068), (6698, 43310), (8662, 33490), (10370, 27974), (12017, 24140), (12070, 24034), (13396, 21655), (13987, 20740), (16745, 17324)]