18535140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^2$

素因数の和:206

約数の個数: 108

約数和(自身を含む): 61236084

約数和(自身を除く): 42700944

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 89, 90, 117, 130, 156, 178, 180, 195, 234, 260, 267, 356, 390, 445, 468, 534, 585, 780, 801, 890, 1068, 1157, 1170, 1335, 1602, 1780, 2314, 2340, 2670, 3204, 3471, 4005, 4628, 5340, 5785, 6942, 7921, 8010, 10413, 11570, 13884, 15842, 16020, 17355, 20826, 23140, 23763, 31684, 34710, 39605, 41652, 47526, 52065, 69420, 71289, 79210, 95052, 102973, 104130, 118815, 142578, 158420, 205946, 208260, 237630, 285156, 308919, 356445, 411892, 475260, 514865, 617838, 712890, 926757, 1029730, 1235676, 1425780, 1544595, 1853514, 2059460, 3089190, 3707028, 4633785, 6178380, 9267570, 18535140]

約数ペア:

[(1, 18535140), (2, 9267570), (3, 6178380), (4, 4633785), (5, 3707028), (6, 3089190), (9, 2059460), (10, 1853514), (12, 1544595), (13, 1425780), (15, 1235676), (18, 1029730), (20, 926757), (26, 712890), (30, 617838), (36, 514865), (39, 475260), (45, 411892), (52, 356445), (60, 308919), (65, 285156), (78, 237630), (89, 208260), (90, 205946), (117, 158420), (130, 142578), (156, 118815), (178, 104130), (180, 102973), (195, 95052), (234, 79210), (260, 71289), (267, 69420), (356, 52065), (390, 47526), (445, 41652), (468, 39605), (534, 34710), (585, 31684), (780, 23763), (801, 23140), (890, 20826), (1068, 17355), (1157, 16020), (1170, 15842), (1335, 13884), (1602, 11570), (1780, 10413), (2314, 8010), (2340, 7921), (2670, 6942), (3204, 5785), (3471, 5340), (4005, 4628)]