90120420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2027}}^1$

素因数の和:2074

約数の個数: 144

約数和(自身を含む): 310040640

約数和(自身を除く): 219920220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 36, 38, 39, 45, 52, 57, 60, 65, 76, 78, 90, 95, 114, 117, 130, 156, 171, 180, 190, 195, 228, 234, 247, 260, 285, 342, 380, 390, 468, 494, 570, 585, 684, 741, 780, 855, 988, 1140, 1170, 1235, 1482, 1710, 2027, 2223, 2340, 2470, 2964, 3420, 3705, 4054, 4446, 4940, 6081, 7410, 8108, 8892, 10135, 11115, 12162, 14820, 18243, 20270, 22230, 24324, 26351, 30405, 36486, 38513, 40540, 44460, 52702, 60810, 72972, 77026, 79053, 91215, 105404, 115539, 121620, 131755, 154052, 158106, 182430, 192565, 231078, 237159, 263510, 316212, 346617, 364860, 385130, 395265, 462156, 474318, 500669, 527020, 577695, 693234, 770260, 790530, 948636, 1001338, 1155390, 1185795, 1386468, 1502007, 1581060, 1733085, 2002676, 2310780, 2371590, 2503345, 3004014, 3466170, 4506021, 4743180, 5006690, 6008028, 6932340, 7510035, 9012042, 10013380, 15020070, 18024084, 22530105, 30040140, 45060210, 90120420]

約数ペア:

[(1, 90120420), (2, 45060210), (3, 30040140), (4, 22530105), (5, 18024084), (6, 15020070), (9, 10013380), (10, 9012042), (12, 7510035), (13, 6932340), (15, 6008028), (18, 5006690), (19, 4743180), (20, 4506021), (26, 3466170), (30, 3004014), (36, 2503345), (38, 2371590), (39, 2310780), (45, 2002676), (52, 1733085), (57, 1581060), (60, 1502007), (65, 1386468), (76, 1185795), (78, 1155390), (90, 1001338), (95, 948636), (114, 790530), (117, 770260), (130, 693234), (156, 577695), (171, 527020), (180, 500669), (190, 474318), (195, 462156), (228, 395265), (234, 385130), (247, 364860), (260, 346617), (285, 316212), (342, 263510), (380, 237159), (390, 231078), (468, 192565), (494, 182430), (570, 158106), (585, 154052), (684, 131755), (741, 121620), (780, 115539), (855, 105404), (988, 91215), (1140, 79053), (1170, 77026), (1235, 72972), (1482, 60810), (1710, 52702), (2027, 44460), (2223, 40540), (2340, 38513), (2470, 36486), (2964, 30405), (3420, 26351), (3705, 24324), (4054, 22230), (4446, 20270), (4940, 18243), (6081, 14820), (7410, 12162), (8108, 11115), (8892, 10135)]