71655680

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 188742960

約数和(自身を除く): 117087280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 37, 40, 64, 68, 74, 80, 85, 89, 128, 136, 148, 160, 170, 178, 185, 256, 272, 296, 320, 340, 356, 370, 445, 544, 592, 629, 640, 680, 712, 740, 890, 1088, 1184, 1258, 1280, 1360, 1424, 1480, 1513, 1780, 2176, 2368, 2516, 2720, 2848, 2960, 3026, 3145, 3293, 3560, 4352, 4736, 5032, 5440, 5696, 5920, 6052, 6290, 6586, 7120, 7565, 9472, 10064, 10880, 11392, 11840, 12104, 12580, 13172, 14240, 15130, 16465, 20128, 21760, 22784, 23680, 24208, 25160, 26344, 28480, 30260, 32930, 40256, 47360, 48416, 50320, 52688, 55981, 56960, 60520, 65860, 80512, 96832, 100640, 105376, 111962, 113920, 121040, 131720, 161024, 193664, 201280, 210752, 223924, 242080, 263440, 279905, 387328, 402560, 421504, 447848, 484160, 526880, 559810, 805120, 843008, 895696, 968320, 1053760, 1119620, 1791392, 1936640, 2107520, 2239240, 3582784, 4215040, 4478480, 7165568, 8956960, 14331136, 17913920, 35827840, 71655680]

約数ペア:

[(1, 71655680), (2, 35827840), (4, 17913920), (5, 14331136), (8, 8956960), (10, 7165568), (16, 4478480), (17, 4215040), (20, 3582784), (32, 2239240), (34, 2107520), (37, 1936640), (40, 1791392), (64, 1119620), (68, 1053760), (74, 968320), (80, 895696), (85, 843008), (89, 805120), (128, 559810), (136, 526880), (148, 484160), (160, 447848), (170, 421504), (178, 402560), (185, 387328), (256, 279905), (272, 263440), (296, 242080), (320, 223924), (340, 210752), (356, 201280), (370, 193664), (445, 161024), (544, 131720), (592, 121040), (629, 113920), (640, 111962), (680, 105376), (712, 100640), (740, 96832), (890, 80512), (1088, 65860), (1184, 60520), (1258, 56960), (1280, 55981), (1360, 52688), (1424, 50320), (1480, 48416), (1513, 47360), (1780, 40256), (2176, 32930), (2368, 30260), (2516, 28480), (2720, 26344), (2848, 25160), (2960, 24208), (3026, 23680), (3145, 22784), (3293, 21760), (3560, 20128), (4352, 16465), (4736, 15130), (5032, 14240), (5440, 13172), (5696, 12580), (5920, 12104), (6052, 11840), (6290, 11392), (6586, 10880), (7120, 10064), (7565, 9472)]