199928720

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{773}}^1$

素因数の和:900

約数の個数: 80

約数和(自身を含む): 481991472

約数和(自身を除く): 282062752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 61, 80, 106, 122, 212, 244, 265, 305, 424, 488, 530, 610, 773, 848, 976, 1060, 1220, 1546, 2120, 2440, 3092, 3233, 3865, 4240, 4880, 6184, 6466, 7730, 12368, 12932, 15460, 16165, 25864, 30920, 32330, 40969, 47153, 51728, 61840, 64660, 81938, 94306, 129320, 163876, 188612, 204845, 235765, 258640, 327752, 377224, 409690, 471530, 655504, 754448, 819380, 943060, 1638760, 1886120, 2499109, 3277520, 3772240, 4998218, 9996436, 12495545, 19992872, 24991090, 39985744, 49982180, 99964360, 199928720]

約数ペア:

[(1, 199928720), (2, 99964360), (4, 49982180), (5, 39985744), (8, 24991090), (10, 19992872), (16, 12495545), (20, 9996436), (40, 4998218), (53, 3772240), (61, 3277520), (80, 2499109), (106, 1886120), (122, 1638760), (212, 943060), (244, 819380), (265, 754448), (305, 655504), (424, 471530), (488, 409690), (530, 377224), (610, 327752), (773, 258640), (848, 235765), (976, 204845), (1060, 188612), (1220, 163876), (1546, 129320), (2120, 94306), (2440, 81938), (3092, 64660), (3233, 61840), (3865, 51728), (4240, 47153), (4880, 40969), (6184, 32330), (6466, 30920), (7730, 25864), (12368, 16165), (12932, 15460)]