100720240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2389}}^1$

素因数の和:2450

約数の個数: 80

約数和(自身を含む): 256055040

約数和(自身を除く): 155334800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 62, 68, 80, 85, 124, 136, 155, 170, 248, 272, 310, 340, 496, 527, 620, 680, 1054, 1240, 1360, 2108, 2389, 2480, 2635, 4216, 4778, 5270, 8432, 9556, 10540, 11945, 19112, 21080, 23890, 38224, 40613, 42160, 47780, 74059, 81226, 95560, 148118, 162452, 191120, 203065, 296236, 324904, 370295, 406130, 592472, 649808, 740590, 812260, 1184944, 1259003, 1481180, 1624520, 2518006, 2962360, 3249040, 5036012, 5924720, 6295015, 10072024, 12590030, 20144048, 25180060, 50360120, 100720240]

約数ペア:

[(1, 100720240), (2, 50360120), (4, 25180060), (5, 20144048), (8, 12590030), (10, 10072024), (16, 6295015), (17, 5924720), (20, 5036012), (31, 3249040), (34, 2962360), (40, 2518006), (62, 1624520), (68, 1481180), (80, 1259003), (85, 1184944), (124, 812260), (136, 740590), (155, 649808), (170, 592472), (248, 406130), (272, 370295), (310, 324904), (340, 296236), (496, 203065), (527, 191120), (620, 162452), (680, 148118), (1054, 95560), (1240, 81226), (1360, 74059), (2108, 47780), (2389, 42160), (2480, 40613), (2635, 38224), (4216, 23890), (4778, 21080), (5270, 19112), (8432, 11945), (9556, 10540)]