31639465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 50077440

約数和(自身を除く): 18437975

約数列:

[1, 5, 11, 13, 17, 19, 55, 65, 85, 95, 137, 143, 187, 209, 221, 247, 323, 685, 715, 935, 1045, 1105, 1235, 1507, 1615, 1781, 2329, 2431, 2603, 2717, 3553, 4199, 7535, 8905, 11645, 12155, 13015, 13585, 17765, 19591, 20995, 25619, 28633, 30277, 33839, 44251, 46189, 97955, 128095, 143165, 151385, 169195, 221255, 230945, 333047, 372229, 486761, 575263, 1665235, 1861145, 2433805, 2876315, 6327893, 31639465]

約数ペア:

[(1, 31639465), (5, 6327893), (11, 2876315), (13, 2433805), (17, 1861145), (19, 1665235), (55, 575263), (65, 486761), (85, 372229), (95, 333047), (137, 230945), (143, 221255), (187, 169195), (209, 151385), (221, 143165), (247, 128095), (323, 97955), (685, 46189), (715, 44251), (935, 33839), (1045, 30277), (1105, 28633), (1235, 25619), (1507, 20995), (1615, 19591), (1781, 17765), (2329, 13585), (2431, 13015), (2603, 12155), (2717, 11645), (3553, 8905), (4199, 7535)]