78423720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1039}}^1$

素因数の和:1107

約数の個数: 128

約数和(自身を含む): 256089600

約数和(自身を除く): 177665880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 37, 40, 51, 60, 68, 74, 85, 102, 111, 120, 136, 148, 170, 185, 204, 222, 255, 296, 340, 370, 408, 444, 510, 555, 629, 680, 740, 888, 1020, 1039, 1110, 1258, 1480, 1887, 2040, 2078, 2220, 2516, 3117, 3145, 3774, 4156, 4440, 5032, 5195, 6234, 6290, 7548, 8312, 9435, 10390, 12468, 12580, 15096, 15585, 17663, 18870, 20780, 24936, 25160, 31170, 35326, 37740, 38443, 41560, 52989, 62340, 70652, 75480, 76886, 88315, 105978, 115329, 124680, 141304, 153772, 176630, 192215, 211956, 230658, 264945, 307544, 353260, 384430, 423912, 461316, 529890, 576645, 653531, 706520, 768860, 922632, 1059780, 1153290, 1307062, 1537720, 1960593, 2119560, 2306580, 2614124, 3267655, 3921186, 4613160, 5228248, 6535310, 7842372, 9802965, 13070620, 15684744, 19605930, 26141240, 39211860, 78423720]

約数ペア:

[(1, 78423720), (2, 39211860), (3, 26141240), (4, 19605930), (5, 15684744), (6, 13070620), (8, 9802965), (10, 7842372), (12, 6535310), (15, 5228248), (17, 4613160), (20, 3921186), (24, 3267655), (30, 2614124), (34, 2306580), (37, 2119560), (40, 1960593), (51, 1537720), (60, 1307062), (68, 1153290), (74, 1059780), (85, 922632), (102, 768860), (111, 706520), (120, 653531), (136, 576645), (148, 529890), (170, 461316), (185, 423912), (204, 384430), (222, 353260), (255, 307544), (296, 264945), (340, 230658), (370, 211956), (408, 192215), (444, 176630), (510, 153772), (555, 141304), (629, 124680), (680, 115329), (740, 105978), (888, 88315), (1020, 76886), (1039, 75480), (1110, 70652), (1258, 62340), (1480, 52989), (1887, 41560), (2040, 38443), (2078, 37740), (2220, 35326), (2516, 31170), (3117, 25160), (3145, 24936), (3774, 20780), (4156, 18870), (4440, 17663), (5032, 15585), (5195, 15096), (6234, 12580), (6290, 12468), (7548, 10390), (8312, 9435)]