78421140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{571}}^1$

素因数の和:702

約数の個数: 144

約数和(自身を含む): 274834560

約数和(自身を除く): 196413420

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 109, 126, 140, 180, 210, 218, 252, 315, 327, 420, 436, 545, 571, 630, 654, 763, 981, 1090, 1142, 1260, 1308, 1526, 1635, 1713, 1962, 2180, 2284, 2289, 2855, 3052, 3270, 3426, 3815, 3924, 3997, 4578, 4905, 5139, 5710, 6540, 6852, 6867, 7630, 7994, 8565, 9156, 9810, 10278, 11420, 11445, 11991, 13734, 15260, 15988, 17130, 19620, 19985, 20556, 22890, 23982, 25695, 27468, 34260, 34335, 35973, 39970, 45780, 47964, 51390, 59955, 62239, 68670, 71946, 79940, 102780, 119910, 124478, 137340, 143892, 179865, 186717, 239820, 248956, 311195, 359730, 373434, 435673, 560151, 622390, 719460, 746868, 871346, 933585, 1120302, 1244780, 1307019, 1742692, 1867170, 2178365, 2240604, 2614038, 2800755, 3734340, 3921057, 4356730, 5228076, 5601510, 6535095, 7842114, 8713460, 11203020, 13070190, 15684228, 19605285, 26140380, 39210570, 78421140]

約数ペア:

[(1, 78421140), (2, 39210570), (3, 26140380), (4, 19605285), (5, 15684228), (6, 13070190), (7, 11203020), (9, 8713460), (10, 7842114), (12, 6535095), (14, 5601510), (15, 5228076), (18, 4356730), (20, 3921057), (21, 3734340), (28, 2800755), (30, 2614038), (35, 2240604), (36, 2178365), (42, 1867170), (45, 1742692), (60, 1307019), (63, 1244780), (70, 1120302), (84, 933585), (90, 871346), (105, 746868), (109, 719460), (126, 622390), (140, 560151), (180, 435673), (210, 373434), (218, 359730), (252, 311195), (315, 248956), (327, 239820), (420, 186717), (436, 179865), (545, 143892), (571, 137340), (630, 124478), (654, 119910), (763, 102780), (981, 79940), (1090, 71946), (1142, 68670), (1260, 62239), (1308, 59955), (1526, 51390), (1635, 47964), (1713, 45780), (1962, 39970), (2180, 35973), (2284, 34335), (2289, 34260), (2855, 27468), (3052, 25695), (3270, 23982), (3426, 22890), (3815, 20556), (3924, 19985), (3997, 19620), (4578, 17130), (4905, 15988), (5139, 15260), (5710, 13734), (6540, 11991), (6852, 11445), (6867, 11420), (7630, 10278), (7994, 9810), (8565, 9156)]