401541760

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{547}}^1$

素因数の和:634

約数の個数: 128

約数和(自身を含む): 1019543040

約数和(自身を除く): 618001280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 64, 74, 80, 124, 128, 148, 155, 160, 185, 248, 296, 310, 320, 370, 496, 547, 592, 620, 640, 740, 992, 1094, 1147, 1184, 1240, 1480, 1984, 2188, 2294, 2368, 2480, 2735, 2960, 3968, 4376, 4588, 4736, 4960, 5470, 5735, 5920, 8752, 9176, 9920, 10940, 11470, 11840, 16957, 17504, 18352, 19840, 20239, 21880, 22940, 23680, 33914, 35008, 36704, 40478, 43760, 45880, 67828, 70016, 73408, 80956, 84785, 87520, 91760, 101195, 135656, 146816, 161912, 169570, 175040, 183520, 202390, 271312, 323824, 339140, 350080, 367040, 404780, 542624, 627409, 647648, 678280, 734080, 809560, 1085248, 1254818, 1295296, 1356560, 1619120, 2170496, 2509636, 2590592, 2713120, 3137045, 3238240, 5019272, 5426240, 6274090, 6476480, 10038544, 10852480, 12548180, 12952960, 20077088, 25096360, 40154176, 50192720, 80308352, 100385440, 200770880, 401541760]

約数ペア:

[(1, 401541760), (2, 200770880), (4, 100385440), (5, 80308352), (8, 50192720), (10, 40154176), (16, 25096360), (20, 20077088), (31, 12952960), (32, 12548180), (37, 10852480), (40, 10038544), (62, 6476480), (64, 6274090), (74, 5426240), (80, 5019272), (124, 3238240), (128, 3137045), (148, 2713120), (155, 2590592), (160, 2509636), (185, 2170496), (248, 1619120), (296, 1356560), (310, 1295296), (320, 1254818), (370, 1085248), (496, 809560), (547, 734080), (592, 678280), (620, 647648), (640, 627409), (740, 542624), (992, 404780), (1094, 367040), (1147, 350080), (1184, 339140), (1240, 323824), (1480, 271312), (1984, 202390), (2188, 183520), (2294, 175040), (2368, 169570), (2480, 161912), (2735, 146816), (2960, 135656), (3968, 101195), (4376, 91760), (4588, 87520), (4736, 84785), (4960, 80956), (5470, 73408), (5735, 70016), (5920, 67828), (8752, 45880), (9176, 43760), (9920, 40478), (10940, 36704), (11470, 35008), (11840, 33914), (16957, 23680), (17504, 22940), (18352, 21880), (19840, 20239)]