2019512800

素因数分解:

$2^5\times 5^2\times {\mathrm{571}}^1\times {\mathrm{4421}}^1$

素因数の和:5012

約数の個数: 72

約数和(自身を含む): 4939886952

約数和(自身を除く): 2920374152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 571, 800, 1142, 2284, 2855, 4421, 4568, 5710, 8842, 9136, 11420, 14275, 17684, 18272, 22105, 22840, 28550, 35368, 44210, 45680, 57100, 70736, 88420, 91360, 110525, 114200, 141472, 176840, 221050, 228400, 353680, 442100, 456800, 707360, 884200, 1768400, 2524391, 3536800, 5048782, 10097564, 12621955, 20195128, 25243910, 40390256, 50487820, 63109775, 80780512, 100975640, 126219550, 201951280, 252439100, 403902560, 504878200, 1009756400, 2019512800]

約数ペア:

[(1, 2019512800), (2, 1009756400), (4, 504878200), (5, 403902560), (8, 252439100), (10, 201951280), (16, 126219550), (20, 100975640), (25, 80780512), (32, 63109775), (40, 50487820), (50, 40390256), (80, 25243910), (100, 20195128), (160, 12621955), (200, 10097564), (400, 5048782), (571, 3536800), (800, 2524391), (1142, 1768400), (2284, 884200), (2855, 707360), (4421, 456800), (4568, 442100), (5710, 353680), (8842, 228400), (9136, 221050), (11420, 176840), (14275, 141472), (17684, 114200), (18272, 110525), (22105, 91360), (22840, 88420), (28550, 70736), (35368, 57100), (44210, 45680)]