72207980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{311}}^1$

素因数の和:399

約数の個数: 96

約数和(自身を含む): 176117760

約数和(自身を除く): 103909780

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 47, 52, 65, 76, 94, 95, 130, 188, 190, 235, 247, 260, 311, 380, 470, 494, 611, 622, 893, 940, 988, 1222, 1235, 1244, 1555, 1786, 2444, 2470, 3055, 3110, 3572, 4043, 4465, 4940, 5909, 6110, 6220, 8086, 8930, 11609, 11818, 12220, 14617, 16172, 17860, 20215, 23218, 23636, 29234, 29545, 40430, 46436, 58045, 58468, 59090, 73085, 76817, 80860, 116090, 118180, 146170, 153634, 190021, 232180, 277723, 292340, 307268, 380042, 384085, 555446, 760084, 768170, 950105, 1110892, 1388615, 1536340, 1900210, 2777230, 3610399, 3800420, 5554460, 7220798, 14441596, 18051995, 36103990, 72207980]

約数ペア:

[(1, 72207980), (2, 36103990), (4, 18051995), (5, 14441596), (10, 7220798), (13, 5554460), (19, 3800420), (20, 3610399), (26, 2777230), (38, 1900210), (47, 1536340), (52, 1388615), (65, 1110892), (76, 950105), (94, 768170), (95, 760084), (130, 555446), (188, 384085), (190, 380042), (235, 307268), (247, 292340), (260, 277723), (311, 232180), (380, 190021), (470, 153634), (494, 146170), (611, 118180), (622, 116090), (893, 80860), (940, 76817), (988, 73085), (1222, 59090), (1235, 58468), (1244, 58045), (1555, 46436), (1786, 40430), (2444, 29545), (2470, 29234), (3055, 23636), (3110, 23218), (3572, 20215), (4043, 17860), (4465, 16172), (4940, 14617), (5909, 12220), (6110, 11818), (6220, 11609), (8086, 8930)]