66178320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21211}}^1$

素因数の和:21240

約数の個数: 80

約数和(自身を含む): 220944192

約数和(自身を除く): 154765872

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 21211, 42422, 63633, 84844, 106055, 127266, 169688, 212110, 254532, 275743, 318165, 339376, 424220, 509064, 551486, 636330, 827229, 848440, 1018128, 1102972, 1272660, 1378715, 1654458, 1696880, 2205944, 2545320, 2757430, 3308916, 4136145, 4411888, 5090640, 5514860, 6617832, 8272290, 11029720, 13235664, 16544580, 22059440, 33089160, 66178320]

約数ペア:

[(1, 66178320), (2, 33089160), (3, 22059440), (4, 16544580), (5, 13235664), (6, 11029720), (8, 8272290), (10, 6617832), (12, 5514860), (13, 5090640), (15, 4411888), (16, 4136145), (20, 3308916), (24, 2757430), (26, 2545320), (30, 2205944), (39, 1696880), (40, 1654458), (48, 1378715), (52, 1272660), (60, 1102972), (65, 1018128), (78, 848440), (80, 827229), (104, 636330), (120, 551486), (130, 509064), (156, 424220), (195, 339376), (208, 318165), (240, 275743), (260, 254532), (312, 212110), (390, 169688), (520, 127266), (624, 106055), (780, 84844), (1040, 63633), (1560, 42422), (3120, 21211)]