401121240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{661}}^1$

素因数の和:1077

約数の個数: 128

約数和(自身を含む): 1301227200

約数和(自身を除く): 900105960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 389, 390, 520, 661, 778, 780, 1167, 1322, 1556, 1560, 1945, 1983, 2334, 2644, 3112, 3305, 3890, 3966, 4668, 5057, 5288, 5835, 6610, 7780, 7932, 8593, 9336, 9915, 10114, 11670, 13220, 15171, 15560, 15864, 17186, 19830, 20228, 23340, 25285, 25779, 26440, 30342, 34372, 39660, 40456, 42965, 46680, 50570, 51558, 60684, 68744, 75855, 79320, 85930, 101140, 103116, 121368, 128895, 151710, 171860, 202280, 206232, 257129, 257790, 303420, 343720, 514258, 515580, 606840, 771387, 1028516, 1031160, 1285645, 1542774, 2057032, 2571290, 3085548, 3342677, 3856935, 5142580, 6171096, 6685354, 7713870, 10028031, 10285160, 13370708, 15427740, 16713385, 20056062, 26741416, 30855480, 33426770, 40112124, 50140155, 66853540, 80224248, 100280310, 133707080, 200560620, 401121240]

約数ペア:

[(1, 401121240), (2, 200560620), (3, 133707080), (4, 100280310), (5, 80224248), (6, 66853540), (8, 50140155), (10, 40112124), (12, 33426770), (13, 30855480), (15, 26741416), (20, 20056062), (24, 16713385), (26, 15427740), (30, 13370708), (39, 10285160), (40, 10028031), (52, 7713870), (60, 6685354), (65, 6171096), (78, 5142580), (104, 3856935), (120, 3342677), (130, 3085548), (156, 2571290), (195, 2057032), (260, 1542774), (312, 1285645), (389, 1031160), (390, 1028516), (520, 771387), (661, 606840), (778, 515580), (780, 514258), (1167, 343720), (1322, 303420), (1556, 257790), (1560, 257129), (1945, 206232), (1983, 202280), (2334, 171860), (2644, 151710), (3112, 128895), (3305, 121368), (3890, 103116), (3966, 101140), (4668, 85930), (5057, 79320), (5288, 75855), (5835, 68744), (6610, 60684), (7780, 51558), (7932, 50570), (8593, 46680), (9336, 42965), (9915, 40456), (10114, 39660), (11670, 34372), (13220, 30342), (15171, 26440), (15560, 25779), (15864, 25285), (17186, 23340), (19830, 20228)]