991650420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{13877}}^1$

素因数の和:14289

約数の個数: 72

約数和(自身を含む): 3015800424

約数和(自身を除く): 2024150004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 397, 794, 1191, 1588, 1985, 2382, 3573, 3970, 4764, 5955, 7146, 7940, 11910, 13877, 14292, 17865, 23820, 27754, 35730, 41631, 55508, 69385, 71460, 83262, 124893, 138770, 166524, 208155, 249786, 277540, 416310, 499572, 624465, 832620, 1248930, 2497860, 5509169, 11018338, 16527507, 22036676, 27545845, 33055014, 49582521, 55091690, 66110028, 82637535, 99165042, 110183380, 165275070, 198330084, 247912605, 330550140, 495825210, 991650420]

約数ペア:

[(1, 991650420), (2, 495825210), (3, 330550140), (4, 247912605), (5, 198330084), (6, 165275070), (9, 110183380), (10, 99165042), (12, 82637535), (15, 66110028), (18, 55091690), (20, 49582521), (30, 33055014), (36, 27545845), (45, 22036676), (60, 16527507), (90, 11018338), (180, 5509169), (397, 2497860), (794, 1248930), (1191, 832620), (1588, 624465), (1985, 499572), (2382, 416310), (3573, 277540), (3970, 249786), (4764, 208155), (5955, 166524), (7146, 138770), (7940, 124893), (11910, 83262), (13877, 71460), (14292, 69385), (17865, 55508), (23820, 41631), (27754, 35730)]