642712980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2221}}^1$

素因数の和:2306

約数の個数: 192

約数和(自身を含む): 2257694208

約数和(自身を除く): 1614981228

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 53, 60, 65, 70, 78, 84, 91, 105, 106, 130, 140, 156, 159, 182, 195, 210, 212, 260, 265, 273, 318, 364, 371, 390, 420, 455, 530, 546, 636, 689, 742, 780, 795, 910, 1060, 1092, 1113, 1365, 1378, 1484, 1590, 1820, 1855, 2067, 2221, 2226, 2730, 2756, 3180, 3445, 3710, 4134, 4442, 4452, 4823, 5460, 5565, 6663, 6890, 7420, 8268, 8884, 9646, 10335, 11105, 11130, 13326, 13780, 14469, 15547, 19292, 20670, 22210, 22260, 24115, 26652, 28873, 28938, 31094, 33315, 41340, 44420, 46641, 48230, 57746, 57876, 62188, 66630, 72345, 77735, 86619, 93282, 96460, 115492, 117713, 133260, 144365, 144690, 155470, 173238, 186564, 202111, 233205, 235426, 288730, 289380, 310940, 346476, 353139, 404222, 433095, 466410, 470852, 577460, 588565, 606333, 706278, 808444, 823991, 866190, 932820, 1010555, 1177130, 1212666, 1412556, 1530269, 1647982, 1732380, 1765695, 2021110, 2354260, 2425332, 2471973, 3031665, 3060538, 3295964, 3531390, 4042220, 4119955, 4590807, 4943946, 6063330, 6121076, 7062780, 7651345, 8239910, 9181614, 9887892, 10711883, 12126660, 12359865, 15302690, 16479820, 18363228, 21423766, 22954035, 24719730, 30605380, 32135649, 42847532, 45908070, 49439460, 53559415, 64271298, 91816140, 107118830, 128542596, 160678245, 214237660, 321356490, 642712980]

約数ペア:

[(1, 642712980), (2, 321356490), (3, 214237660), (4, 160678245), (5, 128542596), (6, 107118830), (7, 91816140), (10, 64271298), (12, 53559415), (13, 49439460), (14, 45908070), (15, 42847532), (20, 32135649), (21, 30605380), (26, 24719730), (28, 22954035), (30, 21423766), (35, 18363228), (39, 16479820), (42, 15302690), (52, 12359865), (53, 12126660), (60, 10711883), (65, 9887892), (70, 9181614), (78, 8239910), (84, 7651345), (91, 7062780), (105, 6121076), (106, 6063330), (130, 4943946), (140, 4590807), (156, 4119955), (159, 4042220), (182, 3531390), (195, 3295964), (210, 3060538), (212, 3031665), (260, 2471973), (265, 2425332), (273, 2354260), (318, 2021110), (364, 1765695), (371, 1732380), (390, 1647982), (420, 1530269), (455, 1412556), (530, 1212666), (546, 1177130), (636, 1010555), (689, 932820), (742, 866190), (780, 823991), (795, 808444), (910, 706278), (1060, 606333), (1092, 588565), (1113, 577460), (1365, 470852), (1378, 466410), (1484, 433095), (1590, 404222), (1820, 353139), (1855, 346476), (2067, 310940), (2221, 289380), (2226, 288730), (2730, 235426), (2756, 233205), (3180, 202111), (3445, 186564), (3710, 173238), (4134, 155470), (4442, 144690), (4452, 144365), (4823, 133260), (5460, 117713), (5565, 115492), (6663, 96460), (6890, 93282), (7420, 86619), (8268, 77735), (8884, 72345), (9646, 66630), (10335, 62188), (11105, 57876), (11130, 57746), (13326, 48230), (13780, 46641), (14469, 44420), (15547, 41340), (19292, 33315), (20670, 31094), (22210, 28938), (22260, 28873), (24115, 26652)]