251326920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5197}}^1$

素因数の和:5255

約数の個数: 128

約数和(自身を含む): 838333440

約数和(自身を除く): 587006520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 60, 62, 65, 78, 93, 104, 120, 124, 130, 155, 156, 186, 195, 248, 260, 310, 312, 372, 390, 403, 465, 520, 620, 744, 780, 806, 930, 1209, 1240, 1560, 1612, 1860, 2015, 2418, 3224, 3720, 4030, 4836, 5197, 6045, 8060, 9672, 10394, 12090, 15591, 16120, 20788, 24180, 25985, 31182, 41576, 48360, 51970, 62364, 67561, 77955, 103940, 124728, 135122, 155910, 161107, 202683, 207880, 270244, 311820, 322214, 337805, 405366, 483321, 540488, 623640, 644428, 675610, 805535, 810732, 966642, 1013415, 1288856, 1351220, 1611070, 1621464, 1933284, 2026830, 2094391, 2416605, 2702440, 3222140, 3866568, 4053660, 4188782, 4833210, 6283173, 6444280, 8107320, 8377564, 9666420, 10471955, 12566346, 16755128, 19332840, 20943910, 25132692, 31415865, 41887820, 50265384, 62831730, 83775640, 125663460, 251326920]

約数ペア:

[(1, 251326920), (2, 125663460), (3, 83775640), (4, 62831730), (5, 50265384), (6, 41887820), (8, 31415865), (10, 25132692), (12, 20943910), (13, 19332840), (15, 16755128), (20, 12566346), (24, 10471955), (26, 9666420), (30, 8377564), (31, 8107320), (39, 6444280), (40, 6283173), (52, 4833210), (60, 4188782), (62, 4053660), (65, 3866568), (78, 3222140), (93, 2702440), (104, 2416605), (120, 2094391), (124, 2026830), (130, 1933284), (155, 1621464), (156, 1611070), (186, 1351220), (195, 1288856), (248, 1013415), (260, 966642), (310, 810732), (312, 805535), (372, 675610), (390, 644428), (403, 623640), (465, 540488), (520, 483321), (620, 405366), (744, 337805), (780, 322214), (806, 311820), (930, 270244), (1209, 207880), (1240, 202683), (1560, 161107), (1612, 155910), (1860, 135122), (2015, 124728), (2418, 103940), (3224, 77955), (3720, 67561), (4030, 62364), (4836, 51970), (5197, 48360), (6045, 41576), (8060, 31182), (9672, 25985), (10394, 24180), (12090, 20788), (15591, 16120)]