40399840

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19423}}^1$

素因数の和:19451

約数の個数: 48

約数和(自身を含む): 102791808

約数和(自身を除く): 62391968

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 19423, 38846, 77692, 97115, 155384, 194230, 252499, 310768, 388460, 504998, 621536, 776920, 1009996, 1262495, 1553840, 2019992, 2524990, 3107680, 4039984, 5049980, 8079968, 10099960, 20199920, 40399840]

約数ペア:

[(1, 40399840), (2, 20199920), (4, 10099960), (5, 8079968), (8, 5049980), (10, 4039984), (13, 3107680), (16, 2524990), (20, 2019992), (26, 1553840), (32, 1262495), (40, 1009996), (52, 776920), (65, 621536), (80, 504998), (104, 388460), (130, 310768), (160, 252499), (208, 194230), (260, 155384), (416, 97115), (520, 77692), (1040, 38846), (2080, 19423)]