20111255875

素因数分解:

$5^3\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{349}}^1$

素因数の和:629

約数の個数: 64

約数和(自身を含む): 26291865600

約数和(自身を除く): 6180609725

約数列:

[1, 5, 25, 43, 71, 125, 151, 215, 349, 355, 755, 1075, 1745, 1775, 3053, 3775, 5375, 6493, 8725, 8875, 10721, 15007, 15265, 18875, 24779, 32465, 43625, 52699, 53605, 75035, 76325, 123895, 162325, 263495, 268025, 375175, 381625, 461003, 619475, 811625, 1065497, 1317475, 1340125, 1875875, 2266057, 2305015, 3097375, 3741629, 5327485, 6587375, 11330285, 11525075, 18708145, 26637425, 56651425, 57625375, 93540725, 133187125, 160890047, 283257125, 467703625, 804450235, 4022251175, 20111255875]

約数ペア:

[(1, 20111255875), (5, 4022251175), (25, 804450235), (43, 467703625), (71, 283257125), (125, 160890047), (151, 133187125), (215, 93540725), (349, 57625375), (355, 56651425), (755, 26637425), (1075, 18708145), (1745, 11525075), (1775, 11330285), (3053, 6587375), (3775, 5327485), (5375, 3741629), (6493, 3097375), (8725, 2305015), (8875, 2266057), (10721, 1875875), (15007, 1340125), (15265, 1317475), (18875, 1065497), (24779, 811625), (32465, 619475), (43625, 461003), (52699, 381625), (53605, 375175), (75035, 268025), (76325, 263495), (123895, 162325)]