1640381940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{29303}}^1$

素因数の和:29629

約数の個数: 72

約数和(自身を含む): 4991995008

約数和(自身を除く): 3351613068

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 311, 622, 933, 1244, 1555, 1866, 2799, 3110, 3732, 4665, 5598, 6220, 9330, 11196, 13995, 18660, 27990, 29303, 55980, 58606, 87909, 117212, 146515, 175818, 263727, 293030, 351636, 439545, 527454, 586060, 879090, 1054908, 1318635, 1758180, 2637270, 5274540, 9113233, 18226466, 27339699, 36452932, 45566165, 54679398, 82019097, 91132330, 109358796, 136698495, 164038194, 182264660, 273396990, 328076388, 410095485, 546793980, 820190970, 1640381940]

約数ペア:

[(1, 1640381940), (2, 820190970), (3, 546793980), (4, 410095485), (5, 328076388), (6, 273396990), (9, 182264660), (10, 164038194), (12, 136698495), (15, 109358796), (18, 91132330), (20, 82019097), (30, 54679398), (36, 45566165), (45, 36452932), (60, 27339699), (90, 18226466), (180, 9113233), (311, 5274540), (622, 2637270), (933, 1758180), (1244, 1318635), (1555, 1054908), (1866, 879090), (2799, 586060), (3110, 527454), (3732, 439545), (4665, 351636), (5598, 293030), (6220, 263727), (9330, 175818), (11196, 146515), (13995, 117212), (18660, 87909), (27990, 58606), (29303, 55980)]