408403320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{673}}^1$

素因数の和:1089

約数の個数: 128

約数和(自身を含む): 1324814400

約数和(自身を除く): 916411080

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, 673, 778, 780, 1167, 1346, 1556, 1560, 1945, 2019, 2334, 2692, 3112, 3365, 3890, 4038, 4668, 5057, 5384, 5835, 6730, 7780, 8076, 8749, 9336, 10095, 10114, 11670, 13460, 15171, 15560, 16152, 17498, 20190, 20228, 23340, 25285, 26247, 26920, 30342, 34996, 40380, 40456, 43745, 46680, 50570, 52494, 60684, 69992, 75855, 80760, 87490, 101140, 104988, 121368, 131235, 151710, 174980, 202280, 209976, 261797, 262470, 303420, 349960, 523594, 524940, 606840, 785391, 1047188, 1049880, 1308985, 1570782, 2094376, 2617970, 3141564, 3403361, 3926955, 5235940, 6283128, 6806722, 7853910, 10210083, 10471880, 13613444, 15707820, 17016805, 20420166, 27226888, 31415640, 34033610, 40840332, 51050415, 68067220, 81680664, 102100830, 136134440, 204201660, 408403320]

約数ペア:

[(1, 408403320), (2, 204201660), (3, 136134440), (4, 102100830), (5, 81680664), (6, 68067220), (8, 51050415), (10, 40840332), (12, 34033610), (13, 31415640), (15, 27226888), (20, 20420166), (24, 17016805), (26, 15707820), (30, 13613444), (39, 10471880), (40, 10210083), (52, 7853910), (60, 6806722), (65, 6283128), (78, 5235940), (104, 3926955), (120, 3403361), (130, 3141564), (156, 2617970), (195, 2094376), (260, 1570782), (312, 1308985), (389, 1049880), (390, 1047188), (520, 785391), (673, 606840), (778, 524940), (780, 523594), (1167, 349960), (1346, 303420), (1556, 262470), (1560, 261797), (1945, 209976), (2019, 202280), (2334, 174980), (2692, 151710), (3112, 131235), (3365, 121368), (3890, 104988), (4038, 101140), (4668, 87490), (5057, 80760), (5384, 75855), (5835, 69992), (6730, 60684), (7780, 52494), (8076, 50570), (8749, 46680), (9336, 43745), (10095, 40456), (10114, 40380), (11670, 34996), (13460, 30342), (15171, 26920), (15560, 26247), (16152, 25285), (17498, 23340), (20190, 20228)]