78790920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2971}}^1$

素因数の和:3015

約数の個数: 128

約数和(自身を含む): 269619840

約数和(自身を除く): 190828920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 17, 20, 24, 26, 30, 34, 39, 40, 51, 52, 60, 65, 68, 78, 85, 102, 104, 120, 130, 136, 156, 170, 195, 204, 221, 255, 260, 312, 340, 390, 408, 442, 510, 520, 663, 680, 780, 884, 1020, 1105, 1326, 1560, 1768, 2040, 2210, 2652, 2971, 3315, 4420, 5304, 5942, 6630, 8840, 8913, 11884, 13260, 14855, 17826, 23768, 26520, 29710, 35652, 38623, 44565, 50507, 59420, 71304, 77246, 89130, 101014, 115869, 118840, 151521, 154492, 178260, 193115, 202028, 231738, 252535, 303042, 308984, 356520, 386230, 404056, 463476, 505070, 579345, 606084, 656591, 757605, 772460, 926952, 1010140, 1158690, 1212168, 1313182, 1515210, 1544920, 1969773, 2020280, 2317380, 2626364, 3030420, 3282955, 3939546, 4634760, 5252728, 6060840, 6565910, 7879092, 9848865, 13131820, 15758184, 19697730, 26263640, 39395460, 78790920]

約数ペア:

[(1, 78790920), (2, 39395460), (3, 26263640), (4, 19697730), (5, 15758184), (6, 13131820), (8, 9848865), (10, 7879092), (12, 6565910), (13, 6060840), (15, 5252728), (17, 4634760), (20, 3939546), (24, 3282955), (26, 3030420), (30, 2626364), (34, 2317380), (39, 2020280), (40, 1969773), (51, 1544920), (52, 1515210), (60, 1313182), (65, 1212168), (68, 1158690), (78, 1010140), (85, 926952), (102, 772460), (104, 757605), (120, 656591), (130, 606084), (136, 579345), (156, 505070), (170, 463476), (195, 404056), (204, 386230), (221, 356520), (255, 308984), (260, 303042), (312, 252535), (340, 231738), (390, 202028), (408, 193115), (442, 178260), (510, 154492), (520, 151521), (663, 118840), (680, 115869), (780, 101014), (884, 89130), (1020, 77246), (1105, 71304), (1326, 59420), (1560, 50507), (1768, 44565), (2040, 38623), (2210, 35652), (2652, 29710), (2971, 26520), (3315, 23768), (4420, 17826), (5304, 14855), (5942, 13260), (6630, 11884), (8840, 8913)]