20013760

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{283}}^1$

素因数の和:330

約数の個数: 112

約数和(自身を含む): 54534816

約数和(自身を除く): 34521056

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 130, 136, 160, 170, 208, 221, 260, 272, 283, 320, 340, 416, 442, 520, 544, 566, 680, 832, 884, 1040, 1088, 1105, 1132, 1360, 1415, 1768, 2080, 2210, 2264, 2720, 2830, 3536, 3679, 4160, 4420, 4528, 4811, 5440, 5660, 7072, 7358, 8840, 9056, 9622, 11320, 14144, 14716, 17680, 18112, 18395, 19244, 22640, 24055, 29432, 35360, 36790, 38488, 45280, 48110, 58864, 62543, 70720, 73580, 76976, 90560, 96220, 117728, 125086, 147160, 153952, 192440, 235456, 250172, 294320, 307904, 312715, 384880, 500344, 588640, 625430, 769760, 1000688, 1177280, 1250860, 1539520, 2001376, 2501720, 4002752, 5003440, 10006880, 20013760]

約数ペア:

[(1, 20013760), (2, 10006880), (4, 5003440), (5, 4002752), (8, 2501720), (10, 2001376), (13, 1539520), (16, 1250860), (17, 1177280), (20, 1000688), (26, 769760), (32, 625430), (34, 588640), (40, 500344), (52, 384880), (64, 312715), (65, 307904), (68, 294320), (80, 250172), (85, 235456), (104, 192440), (130, 153952), (136, 147160), (160, 125086), (170, 117728), (208, 96220), (221, 90560), (260, 76976), (272, 73580), (283, 70720), (320, 62543), (340, 58864), (416, 48110), (442, 45280), (520, 38488), (544, 36790), (566, 35360), (680, 29432), (832, 24055), (884, 22640), (1040, 19244), (1088, 18395), (1105, 18112), (1132, 17680), (1360, 14716), (1415, 14144), (1768, 11320), (2080, 9622), (2210, 9056), (2264, 8840), (2720, 7358), (2830, 7072), (3536, 5660), (3679, 5440), (4160, 4811), (4420, 4528)]