19174740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:130

約数の個数: 144

約数和(自身を含む): 60996096

約数和(自身を除く): 41821356

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 31, 39, 52, 60, 61, 62, 65, 78, 93, 122, 124, 130, 155, 156, 169, 183, 186, 195, 244, 260, 305, 310, 338, 366, 372, 390, 403, 465, 507, 610, 620, 676, 732, 780, 793, 806, 845, 915, 930, 1014, 1209, 1220, 1586, 1612, 1690, 1830, 1860, 1891, 2015, 2028, 2379, 2418, 2535, 3172, 3380, 3660, 3782, 3965, 4030, 4758, 4836, 5070, 5239, 5673, 6045, 7564, 7930, 8060, 9455, 9516, 10140, 10309, 10478, 11346, 11895, 12090, 15717, 15860, 18910, 20618, 20956, 22692, 23790, 24180, 24583, 26195, 28365, 30927, 31434, 37820, 41236, 47580, 49166, 51545, 52390, 56730, 61854, 62868, 73749, 78585, 98332, 103090, 104780, 113460, 122915, 123708, 147498, 154635, 157170, 206180, 245830, 294996, 309270, 314340, 319579, 368745, 491660, 618540, 639158, 737490, 958737, 1278316, 1474980, 1597895, 1917474, 3195790, 3834948, 4793685, 6391580, 9587370, 19174740]

約数ペア:

[(1, 19174740), (2, 9587370), (3, 6391580), (4, 4793685), (5, 3834948), (6, 3195790), (10, 1917474), (12, 1597895), (13, 1474980), (15, 1278316), (20, 958737), (26, 737490), (30, 639158), (31, 618540), (39, 491660), (52, 368745), (60, 319579), (61, 314340), (62, 309270), (65, 294996), (78, 245830), (93, 206180), (122, 157170), (124, 154635), (130, 147498), (155, 123708), (156, 122915), (169, 113460), (183, 104780), (186, 103090), (195, 98332), (244, 78585), (260, 73749), (305, 62868), (310, 61854), (338, 56730), (366, 52390), (372, 51545), (390, 49166), (403, 47580), (465, 41236), (507, 37820), (610, 31434), (620, 30927), (676, 28365), (732, 26195), (780, 24583), (793, 24180), (806, 23790), (845, 22692), (915, 20956), (930, 20618), (1014, 18910), (1209, 15860), (1220, 15717), (1586, 12090), (1612, 11895), (1690, 11346), (1830, 10478), (1860, 10309), (1891, 10140), (2015, 9516), (2028, 9455), (2379, 8060), (2418, 7930), (2535, 7564), (3172, 6045), (3380, 5673), (3660, 5239), (3782, 5070), (3965, 4836), (4030, 4758)]