18863880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1321}}^1$

素因数の和:1359

約数の個数: 128

約数和(自身を含む): 68532480

約数和(自身を除く): 49668600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1321, 1428, 1785, 2040, 2380, 2642, 2856, 3570, 3963, 4760, 5284, 6605, 7140, 7926, 9247, 10568, 13210, 14280, 15852, 18494, 19815, 22457, 26420, 27741, 31704, 36988, 39630, 44914, 46235, 52840, 55482, 67371, 73976, 79260, 89828, 92470, 110964, 112285, 134742, 138705, 157199, 158520, 179656, 184940, 221928, 224570, 269484, 277410, 314398, 336855, 369880, 449140, 471597, 538968, 554820, 628796, 673710, 785995, 898280, 943194, 1109640, 1257592, 1347420, 1571990, 1886388, 2357985, 2694840, 3143980, 3772776, 4715970, 6287960, 9431940, 18863880]

約数ペア:

[(1, 18863880), (2, 9431940), (3, 6287960), (4, 4715970), (5, 3772776), (6, 3143980), (7, 2694840), (8, 2357985), (10, 1886388), (12, 1571990), (14, 1347420), (15, 1257592), (17, 1109640), (20, 943194), (21, 898280), (24, 785995), (28, 673710), (30, 628796), (34, 554820), (35, 538968), (40, 471597), (42, 449140), (51, 369880), (56, 336855), (60, 314398), (68, 277410), (70, 269484), (84, 224570), (85, 221928), (102, 184940), (105, 179656), (119, 158520), (120, 157199), (136, 138705), (140, 134742), (168, 112285), (170, 110964), (204, 92470), (210, 89828), (238, 79260), (255, 73976), (280, 67371), (340, 55482), (357, 52840), (408, 46235), (420, 44914), (476, 39630), (510, 36988), (595, 31704), (680, 27741), (714, 26420), (840, 22457), (952, 19815), (1020, 18494), (1190, 15852), (1321, 14280), (1428, 13210), (1785, 10568), (2040, 9247), (2380, 7926), (2642, 7140), (2856, 6605), (3570, 5284), (3963, 4760)]