18744540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:116

約数の個数: 144

約数和(自身を含む): 59415552

約数和(自身を除く): 40671012

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 23, 30, 34, 46, 47, 51, 60, 68, 69, 85, 92, 94, 102, 115, 138, 141, 170, 188, 204, 230, 235, 255, 276, 282, 289, 340, 345, 391, 460, 470, 510, 564, 578, 690, 705, 782, 799, 867, 940, 1020, 1081, 1156, 1173, 1380, 1410, 1445, 1564, 1598, 1734, 1955, 2162, 2346, 2397, 2820, 2890, 3196, 3243, 3468, 3910, 3995, 4324, 4335, 4692, 4794, 5405, 5780, 5865, 6486, 6647, 7820, 7990, 8670, 9588, 10810, 11730, 11985, 12972, 13294, 13583, 15980, 16215, 17340, 18377, 19941, 21620, 23460, 23970, 26588, 27166, 32430, 33235, 36754, 39882, 40749, 47940, 54332, 55131, 64860, 66470, 67915, 73508, 79764, 81498, 91885, 99705, 110262, 132940, 135830, 162996, 183770, 199410, 203745, 220524, 271660, 275655, 312409, 367540, 398820, 407490, 551310, 624818, 814980, 937227, 1102620, 1249636, 1562045, 1874454, 3124090, 3748908, 4686135, 6248180, 9372270, 18744540]

約数ペア:

[(1, 18744540), (2, 9372270), (3, 6248180), (4, 4686135), (5, 3748908), (6, 3124090), (10, 1874454), (12, 1562045), (15, 1249636), (17, 1102620), (20, 937227), (23, 814980), (30, 624818), (34, 551310), (46, 407490), (47, 398820), (51, 367540), (60, 312409), (68, 275655), (69, 271660), (85, 220524), (92, 203745), (94, 199410), (102, 183770), (115, 162996), (138, 135830), (141, 132940), (170, 110262), (188, 99705), (204, 91885), (230, 81498), (235, 79764), (255, 73508), (276, 67915), (282, 66470), (289, 64860), (340, 55131), (345, 54332), (391, 47940), (460, 40749), (470, 39882), (510, 36754), (564, 33235), (578, 32430), (690, 27166), (705, 26588), (782, 23970), (799, 23460), (867, 21620), (940, 19941), (1020, 18377), (1081, 17340), (1156, 16215), (1173, 15980), (1380, 13583), (1410, 13294), (1445, 12972), (1564, 11985), (1598, 11730), (1734, 10810), (1955, 9588), (2162, 8670), (2346, 7990), (2397, 7820), (2820, 6647), (2890, 6486), (3196, 5865), (3243, 5780), (3468, 5405), (3910, 4794), (3995, 4692), (4324, 4335)]