71388780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{179}}^1$

素因数の和:248

約数の個数: 144

約数和(自身を含む): 222808320

約数和(自身を除く): 151419540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 23, 30, 34, 46, 51, 60, 68, 69, 85, 92, 102, 115, 138, 170, 179, 204, 230, 255, 276, 289, 340, 345, 358, 391, 460, 510, 537, 578, 690, 716, 782, 867, 895, 1020, 1074, 1156, 1173, 1380, 1445, 1564, 1734, 1790, 1955, 2148, 2346, 2685, 2890, 3043, 3468, 3580, 3910, 4117, 4335, 4692, 5370, 5780, 5865, 6086, 6647, 7820, 8234, 8670, 9129, 10740, 11730, 12172, 12351, 13294, 15215, 16468, 17340, 18258, 19941, 20585, 23460, 24702, 26588, 30430, 33235, 36516, 39882, 41170, 45645, 49404, 51731, 60860, 61755, 66470, 69989, 79764, 82340, 91290, 99705, 103462, 123510, 132940, 139978, 155193, 182580, 199410, 206924, 209967, 247020, 258655, 279956, 310386, 349945, 398820, 419934, 517310, 620772, 699890, 775965, 839868, 1034620, 1049835, 1189813, 1399780, 1551930, 2099670, 2379626, 3103860, 3569439, 4199340, 4759252, 5949065, 7138878, 11898130, 14277756, 17847195, 23796260, 35694390, 71388780]

約数ペア:

[(1, 71388780), (2, 35694390), (3, 23796260), (4, 17847195), (5, 14277756), (6, 11898130), (10, 7138878), (12, 5949065), (15, 4759252), (17, 4199340), (20, 3569439), (23, 3103860), (30, 2379626), (34, 2099670), (46, 1551930), (51, 1399780), (60, 1189813), (68, 1049835), (69, 1034620), (85, 839868), (92, 775965), (102, 699890), (115, 620772), (138, 517310), (170, 419934), (179, 398820), (204, 349945), (230, 310386), (255, 279956), (276, 258655), (289, 247020), (340, 209967), (345, 206924), (358, 199410), (391, 182580), (460, 155193), (510, 139978), (537, 132940), (578, 123510), (690, 103462), (716, 99705), (782, 91290), (867, 82340), (895, 79764), (1020, 69989), (1074, 66470), (1156, 61755), (1173, 60860), (1380, 51731), (1445, 49404), (1564, 45645), (1734, 41170), (1790, 39882), (1955, 36516), (2148, 33235), (2346, 30430), (2685, 26588), (2890, 24702), (3043, 23460), (3468, 20585), (3580, 19941), (3910, 18258), (4117, 17340), (4335, 16468), (4692, 15215), (5370, 13294), (5780, 12351), (5865, 12172), (6086, 11730), (6647, 10740), (7820, 9129), (8234, 8670)]