488403890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{2131}}^1$

素因数の和:2235

約数の個数: 64

約数和(自身を含む): 992863872

約数和(自身を除く): 504459982

約数列:

[1, 2, 5, 10, 13, 26, 41, 43, 65, 82, 86, 130, 205, 215, 410, 430, 533, 559, 1066, 1118, 1763, 2131, 2665, 2795, 3526, 4262, 5330, 5590, 8815, 10655, 17630, 21310, 22919, 27703, 45838, 55406, 87371, 91633, 114595, 138515, 174742, 183266, 229190, 277030, 436855, 458165, 873710, 916330, 1135823, 1191229, 2271646, 2382458, 3756953, 5679115, 5956145, 7513906, 11358230, 11912290, 18784765, 37569530, 48840389, 97680778, 244201945, 488403890]

約数ペア:

[(1, 488403890), (2, 244201945), (5, 97680778), (10, 48840389), (13, 37569530), (26, 18784765), (41, 11912290), (43, 11358230), (65, 7513906), (82, 5956145), (86, 5679115), (130, 3756953), (205, 2382458), (215, 2271646), (410, 1191229), (430, 1135823), (533, 916330), (559, 873710), (1066, 458165), (1118, 436855), (1763, 277030), (2131, 229190), (2665, 183266), (2795, 174742), (3526, 138515), (4262, 114595), (5330, 91633), (5590, 87371), (8815, 55406), (10655, 45838), (17630, 27703), (21310, 22919)]