18218970

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{239}}^1$

素因数の和:281

約数の個数: 144

約数和(自身を含む): 59754240

約数和(自身を除く): 41535270

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 30, 33, 35, 42, 45, 55, 63, 66, 70, 77, 90, 99, 105, 110, 121, 126, 154, 165, 198, 210, 231, 239, 242, 315, 330, 363, 385, 462, 478, 495, 605, 630, 693, 717, 726, 770, 847, 990, 1089, 1155, 1195, 1210, 1386, 1434, 1673, 1694, 1815, 2151, 2178, 2310, 2390, 2541, 2629, 3346, 3465, 3585, 3630, 4235, 4302, 5019, 5082, 5258, 5445, 6930, 7170, 7623, 7887, 8365, 8470, 10038, 10755, 10890, 12705, 13145, 15057, 15246, 15774, 16730, 18403, 21510, 23661, 25095, 25410, 26290, 28919, 30114, 36806, 38115, 39435, 47322, 50190, 55209, 57838, 75285, 76230, 78870, 86757, 92015, 110418, 118305, 144595, 150570, 165627, 173514, 184030, 202433, 236610, 260271, 276045, 289190, 331254, 404866, 433785, 520542, 552090, 607299, 828135, 867570, 1012165, 1214598, 1301355, 1656270, 1821897, 2024330, 2602710, 3036495, 3643794, 6072990, 9109485, 18218970]

約数ペア:

[(1, 18218970), (2, 9109485), (3, 6072990), (5, 3643794), (6, 3036495), (7, 2602710), (9, 2024330), (10, 1821897), (11, 1656270), (14, 1301355), (15, 1214598), (18, 1012165), (21, 867570), (22, 828135), (30, 607299), (33, 552090), (35, 520542), (42, 433785), (45, 404866), (55, 331254), (63, 289190), (66, 276045), (70, 260271), (77, 236610), (90, 202433), (99, 184030), (105, 173514), (110, 165627), (121, 150570), (126, 144595), (154, 118305), (165, 110418), (198, 92015), (210, 86757), (231, 78870), (239, 76230), (242, 75285), (315, 57838), (330, 55209), (363, 50190), (385, 47322), (462, 39435), (478, 38115), (495, 36806), (605, 30114), (630, 28919), (693, 26290), (717, 25410), (726, 25095), (770, 23661), (847, 21510), (990, 18403), (1089, 16730), (1155, 15774), (1195, 15246), (1210, 15057), (1386, 13145), (1434, 12705), (1673, 10890), (1694, 10755), (1815, 10038), (2151, 8470), (2178, 8365), (2310, 7887), (2390, 7623), (2541, 7170), (2629, 6930), (3346, 5445), (3465, 5258), (3585, 5082), (3630, 5019), (4235, 4302)]