16804980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1049}}^1$

素因数の和:1153

約数の個数: 72

約数和(自身を含む): 51597000

約数和(自身を除く): 34792020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 890, 1049, 1068, 1335, 1602, 1780, 2098, 2670, 3147, 3204, 4005, 4196, 5245, 5340, 6294, 8010, 9441, 10490, 12588, 15735, 16020, 18882, 20980, 31470, 37764, 47205, 62940, 93361, 94410, 186722, 188820, 280083, 373444, 466805, 560166, 840249, 933610, 1120332, 1400415, 1680498, 1867220, 2800830, 3360996, 4201245, 5601660, 8402490, 16804980]

約数ペア:

[(1, 16804980), (2, 8402490), (3, 5601660), (4, 4201245), (5, 3360996), (6, 2800830), (9, 1867220), (10, 1680498), (12, 1400415), (15, 1120332), (18, 933610), (20, 840249), (30, 560166), (36, 466805), (45, 373444), (60, 280083), (89, 188820), (90, 186722), (178, 94410), (180, 93361), (267, 62940), (356, 47205), (445, 37764), (534, 31470), (801, 20980), (890, 18882), (1049, 16020), (1068, 15735), (1335, 12588), (1602, 10490), (1780, 9441), (2098, 8010), (2670, 6294), (3147, 5340), (3204, 5245), (4005, 4196)]