20913842480

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{683}}^1\times {\mathrm{12347}}^1$

素因数の和:13074

約数の個数: 80

約数和(自身を含む): 50270782464

約数和(自身を除く): 29356939984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 683, 1240, 1366, 2480, 2732, 3415, 5464, 6830, 10928, 12347, 13660, 21173, 24694, 27320, 42346, 49388, 54640, 61735, 84692, 98776, 105865, 123470, 169384, 197552, 211730, 246940, 338768, 382757, 423460, 493880, 765514, 846920, 987760, 1531028, 1693840, 1913785, 3062056, 3827570, 6124112, 7655140, 8433001, 15310280, 16866002, 30620560, 33732004, 42165005, 67464008, 84330010, 134928016, 168660020, 261423031, 337320040, 522846062, 674640080, 1045692124, 1307115155, 2091384248, 2614230310, 4182768496, 5228460620, 10456921240, 20913842480]

約数ペア:

[(1, 20913842480), (2, 10456921240), (4, 5228460620), (5, 4182768496), (8, 2614230310), (10, 2091384248), (16, 1307115155), (20, 1045692124), (31, 674640080), (40, 522846062), (62, 337320040), (80, 261423031), (124, 168660020), (155, 134928016), (248, 84330010), (310, 67464008), (496, 42165005), (620, 33732004), (683, 30620560), (1240, 16866002), (1366, 15310280), (2480, 8433001), (2732, 7655140), (3415, 6124112), (5464, 3827570), (6830, 3062056), (10928, 1913785), (12347, 1693840), (13660, 1531028), (21173, 987760), (24694, 846920), (27320, 765514), (42346, 493880), (49388, 423460), (54640, 382757), (61735, 338768), (84692, 246940), (98776, 211730), (105865, 197552), (123470, 169384)]