18219480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:225

約数の個数: 128

約数和(自身を含む): 58924800

約数和(自身を除く): 40705320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 61, 76, 95, 114, 120, 122, 131, 152, 183, 190, 228, 244, 262, 285, 305, 366, 380, 393, 456, 488, 524, 570, 610, 655, 732, 760, 786, 915, 1048, 1140, 1159, 1220, 1310, 1464, 1572, 1830, 1965, 2280, 2318, 2440, 2489, 2620, 3144, 3477, 3660, 3930, 4636, 4978, 5240, 5795, 6954, 7320, 7467, 7860, 7991, 9272, 9956, 11590, 12445, 13908, 14934, 15720, 15982, 17385, 19912, 23180, 23973, 24890, 27816, 29868, 31964, 34770, 37335, 39955, 46360, 47946, 49780, 59736, 63928, 69540, 74670, 79910, 95892, 99560, 119865, 139080, 149340, 151829, 159820, 191784, 239730, 298680, 303658, 319640, 455487, 479460, 607316, 759145, 910974, 958920, 1214632, 1518290, 1821948, 2277435, 3036580, 3643896, 4554870, 6073160, 9109740, 18219480]

約数ペア:

[(1, 18219480), (2, 9109740), (3, 6073160), (4, 4554870), (5, 3643896), (6, 3036580), (8, 2277435), (10, 1821948), (12, 1518290), (15, 1214632), (19, 958920), (20, 910974), (24, 759145), (30, 607316), (38, 479460), (40, 455487), (57, 319640), (60, 303658), (61, 298680), (76, 239730), (95, 191784), (114, 159820), (120, 151829), (122, 149340), (131, 139080), (152, 119865), (183, 99560), (190, 95892), (228, 79910), (244, 74670), (262, 69540), (285, 63928), (305, 59736), (366, 49780), (380, 47946), (393, 46360), (456, 39955), (488, 37335), (524, 34770), (570, 31964), (610, 29868), (655, 27816), (732, 24890), (760, 23973), (786, 23180), (915, 19912), (1048, 17385), (1140, 15982), (1159, 15720), (1220, 14934), (1310, 13908), (1464, 12445), (1572, 11590), (1830, 9956), (1965, 9272), (2280, 7991), (2318, 7860), (2440, 7467), (2489, 7320), (2620, 6954), (3144, 5795), (3477, 5240), (3660, 4978), (3930, 4636)]