80816520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:295

約数の個数: 128

約数和(自身を含む): 251475840

約数和(自身を除く): 170659320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 53, 60, 97, 106, 120, 131, 159, 194, 212, 262, 265, 291, 318, 388, 393, 424, 485, 524, 530, 582, 636, 655, 776, 786, 795, 970, 1048, 1060, 1164, 1272, 1310, 1455, 1572, 1590, 1940, 1965, 2120, 2328, 2620, 2910, 3144, 3180, 3880, 3930, 5141, 5240, 5820, 6360, 6943, 7860, 10282, 11640, 12707, 13886, 15423, 15720, 20564, 20829, 25414, 25705, 27772, 30846, 34715, 38121, 41128, 41658, 50828, 51410, 55544, 61692, 63535, 69430, 76242, 77115, 83316, 101656, 102820, 104145, 123384, 127070, 138860, 152484, 154230, 166632, 190605, 205640, 208290, 254140, 277720, 304968, 308460, 381210, 416580, 508280, 616920, 673471, 762420, 833160, 1346942, 1524840, 2020413, 2693884, 3367355, 4040826, 5387768, 6734710, 8081652, 10102065, 13469420, 16163304, 20204130, 26938840, 40408260, 80816520]

約数ペア:

[(1, 80816520), (2, 40408260), (3, 26938840), (4, 20204130), (5, 16163304), (6, 13469420), (8, 10102065), (10, 8081652), (12, 6734710), (15, 5387768), (20, 4040826), (24, 3367355), (30, 2693884), (40, 2020413), (53, 1524840), (60, 1346942), (97, 833160), (106, 762420), (120, 673471), (131, 616920), (159, 508280), (194, 416580), (212, 381210), (262, 308460), (265, 304968), (291, 277720), (318, 254140), (388, 208290), (393, 205640), (424, 190605), (485, 166632), (524, 154230), (530, 152484), (582, 138860), (636, 127070), (655, 123384), (776, 104145), (786, 102820), (795, 101656), (970, 83316), (1048, 77115), (1060, 76242), (1164, 69430), (1272, 63535), (1310, 61692), (1455, 55544), (1572, 51410), (1590, 50828), (1940, 41658), (1965, 41128), (2120, 38121), (2328, 34715), (2620, 30846), (2910, 27772), (3144, 25705), (3180, 25414), (3880, 20829), (3930, 20564), (5141, 15720), (5240, 15423), (5820, 13886), (6360, 12707), (6943, 11640), (7860, 10282)]