25411360

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{643}}^1$

素因数の和:690

約数の個数: 96

約数和(自身を含む): 68160960

約数和(自身を除く): 42749600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 160, 190, 208, 247, 260, 304, 380, 416, 494, 520, 608, 643, 760, 988, 1040, 1235, 1286, 1520, 1976, 2080, 2470, 2572, 3040, 3215, 3952, 4940, 5144, 6430, 7904, 8359, 9880, 10288, 12217, 12860, 16718, 19760, 20576, 24434, 25720, 33436, 39520, 41795, 48868, 51440, 61085, 66872, 83590, 97736, 102880, 122170, 133744, 158821, 167180, 195472, 244340, 267488, 317642, 334360, 390944, 488680, 635284, 668720, 794105, 977360, 1270568, 1337440, 1588210, 1954720, 2541136, 3176420, 5082272, 6352840, 12705680, 25411360]

約数ペア:

[(1, 25411360), (2, 12705680), (4, 6352840), (5, 5082272), (8, 3176420), (10, 2541136), (13, 1954720), (16, 1588210), (19, 1337440), (20, 1270568), (26, 977360), (32, 794105), (38, 668720), (40, 635284), (52, 488680), (65, 390944), (76, 334360), (80, 317642), (95, 267488), (104, 244340), (130, 195472), (152, 167180), (160, 158821), (190, 133744), (208, 122170), (247, 102880), (260, 97736), (304, 83590), (380, 66872), (416, 61085), (494, 51440), (520, 48868), (608, 41795), (643, 39520), (760, 33436), (988, 25720), (1040, 24434), (1235, 20576), (1286, 19760), (1520, 16718), (1976, 12860), (2080, 12217), (2470, 10288), (2572, 9880), (3040, 8359), (3215, 7904), (3952, 6430), (4940, 5144)]