218831940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{17123}}^1$

素因数の和:17209

約数の個数: 72

約数和(自身を含む): 673178688

約数和(自身を除く): 454346748

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 17123, 34246, 51369, 68492, 85615, 102738, 154107, 171230, 205476, 256845, 308214, 342460, 513690, 616428, 770535, 1027380, 1215733, 1541070, 2431466, 3082140, 3647199, 4862932, 6078665, 7294398, 10941597, 12157330, 14588796, 18235995, 21883194, 24314660, 36471990, 43766388, 54707985, 72943980, 109415970, 218831940]

約数ペア:

[(1, 218831940), (2, 109415970), (3, 72943980), (4, 54707985), (5, 43766388), (6, 36471990), (9, 24314660), (10, 21883194), (12, 18235995), (15, 14588796), (18, 12157330), (20, 10941597), (30, 7294398), (36, 6078665), (45, 4862932), (60, 3647199), (71, 3082140), (90, 2431466), (142, 1541070), (180, 1215733), (213, 1027380), (284, 770535), (355, 616428), (426, 513690), (639, 342460), (710, 308214), (852, 256845), (1065, 205476), (1278, 171230), (1420, 154107), (2130, 102738), (2556, 85615), (3195, 68492), (4260, 51369), (6390, 34246), (12780, 17123)]