81718650

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:321

約数の個数: 144

約数和(自身を含む): 241364760

約数和(自身を除く): 159646110

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 25, 26, 30, 39, 45, 50, 61, 65, 75, 78, 90, 117, 122, 130, 150, 183, 195, 225, 229, 234, 305, 325, 366, 390, 450, 458, 549, 585, 610, 650, 687, 793, 915, 975, 1098, 1145, 1170, 1374, 1525, 1586, 1830, 1950, 2061, 2290, 2379, 2745, 2925, 2977, 3050, 3435, 3965, 4122, 4575, 4758, 5490, 5725, 5850, 5954, 6870, 7137, 7930, 8931, 9150, 10305, 11450, 11895, 13725, 13969, 14274, 14885, 17175, 17862, 19825, 20610, 23790, 26793, 27450, 27938, 29770, 34350, 35685, 39650, 41907, 44655, 51525, 53586, 59475, 69845, 71370, 74425, 83814, 89310, 103050, 118950, 125721, 133965, 139690, 148850, 178425, 181597, 209535, 223275, 251442, 267930, 349225, 356850, 363194, 419070, 446550, 544791, 628605, 669825, 698450, 907985, 1047675, 1089582, 1257210, 1339650, 1634373, 1815970, 2095350, 2723955, 3143025, 3268746, 4539925, 5447910, 6286050, 8171865, 9079850, 13619775, 16343730, 27239550, 40859325, 81718650]

約数ペア:

[(1, 81718650), (2, 40859325), (3, 27239550), (5, 16343730), (6, 13619775), (9, 9079850), (10, 8171865), (13, 6286050), (15, 5447910), (18, 4539925), (25, 3268746), (26, 3143025), (30, 2723955), (39, 2095350), (45, 1815970), (50, 1634373), (61, 1339650), (65, 1257210), (75, 1089582), (78, 1047675), (90, 907985), (117, 698450), (122, 669825), (130, 628605), (150, 544791), (183, 446550), (195, 419070), (225, 363194), (229, 356850), (234, 349225), (305, 267930), (325, 251442), (366, 223275), (390, 209535), (450, 181597), (458, 178425), (549, 148850), (585, 139690), (610, 133965), (650, 125721), (687, 118950), (793, 103050), (915, 89310), (975, 83814), (1098, 74425), (1145, 71370), (1170, 69845), (1374, 59475), (1525, 53586), (1586, 51525), (1830, 44655), (1950, 41907), (2061, 39650), (2290, 35685), (2379, 34350), (2745, 29770), (2925, 27938), (2977, 27450), (3050, 26793), (3435, 23790), (3965, 20610), (4122, 19825), (4575, 17862), (4758, 17175), (5490, 14885), (5725, 14274), (5850, 13969), (5954, 13725), (6870, 11895), (7137, 11450), (7930, 10305), (8931, 9150)]