20076943940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{349}}^1\times {\mathrm{3221}}^1$

素因数の和:3645

約数の個数: 96

約数和(自身を含む): 45468864000

約数和(自身を除く): 25391920060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 349, 380, 470, 698, 893, 940, 1396, 1745, 1786, 3221, 3490, 3572, 4465, 6442, 6631, 6980, 8930, 12884, 13262, 16105, 16403, 17860, 26524, 32210, 32806, 33155, 61199, 64420, 65612, 66310, 82015, 122398, 132620, 151387, 164030, 244796, 302774, 305995, 311657, 328060, 605548, 611990, 623314, 756935, 1124129, 1223980, 1246628, 1513870, 1558285, 2248258, 2876353, 3027740, 3116570, 4496516, 5620645, 5752706, 6233140, 11241290, 11505412, 14381765, 21358451, 22482580, 28763530, 42716902, 52834063, 57527060, 85433804, 105668126, 106792255, 211336252, 213584510, 264170315, 427169020, 528340630, 1003847197, 1056681260, 2007694394, 4015388788, 5019235985, 10038471970, 20076943940]

約数ペア:

[(1, 20076943940), (2, 10038471970), (4, 5019235985), (5, 4015388788), (10, 2007694394), (19, 1056681260), (20, 1003847197), (38, 528340630), (47, 427169020), (76, 264170315), (94, 213584510), (95, 211336252), (188, 106792255), (190, 105668126), (235, 85433804), (349, 57527060), (380, 52834063), (470, 42716902), (698, 28763530), (893, 22482580), (940, 21358451), (1396, 14381765), (1745, 11505412), (1786, 11241290), (3221, 6233140), (3490, 5752706), (3572, 5620645), (4465, 4496516), (6442, 3116570), (6631, 3027740), (6980, 2876353), (8930, 2248258), (12884, 1558285), (13262, 1513870), (16105, 1246628), (16403, 1223980), (17860, 1124129), (26524, 756935), (32210, 623314), (32806, 611990), (33155, 605548), (61199, 328060), (64420, 311657), (65612, 305995), (66310, 302774), (82015, 244796), (122398, 164030), (132620, 151387)]