30909700

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:277

約数の個数: 72

約数和(自身を含む): 71245440

約数和(自身を除く): 40335740

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 89, 92, 100, 115, 151, 178, 230, 302, 356, 445, 460, 575, 604, 755, 890, 1150, 1510, 1780, 2047, 2225, 2300, 3020, 3473, 3775, 4094, 4450, 6946, 7550, 8188, 8900, 10235, 13439, 13892, 15100, 17365, 20470, 26878, 34730, 40940, 51175, 53756, 67195, 69460, 86825, 102350, 134390, 173650, 204700, 268780, 309097, 335975, 347300, 618194, 671950, 1236388, 1343900, 1545485, 3090970, 6181940, 7727425, 15454850, 30909700]

約数ペア:

[(1, 30909700), (2, 15454850), (4, 7727425), (5, 6181940), (10, 3090970), (20, 1545485), (23, 1343900), (25, 1236388), (46, 671950), (50, 618194), (89, 347300), (92, 335975), (100, 309097), (115, 268780), (151, 204700), (178, 173650), (230, 134390), (302, 102350), (356, 86825), (445, 69460), (460, 67195), (575, 53756), (604, 51175), (755, 40940), (890, 34730), (1150, 26878), (1510, 20470), (1780, 17365), (2047, 15100), (2225, 13892), (2300, 13439), (3020, 10235), (3473, 8900), (3775, 8188), (4094, 7550), (4450, 6946)]